Authorization of requisition form

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I found this question from Acca study hub.
Cherry Blossom Co
The following scenario relates to questions 1–5

Cherry Blossom Co (Cherry) is a manufacturer of custom-made furniture. The company purchases its raw materials from a wide range of suppliers. Below is a description of Cherry’s purchasing system.

When production supervisors require raw materials, they complete a requisition form and submit it to the purchase ordering department. Requisition forms do not require authorisation and no reference is made to the current inventory levels of the materials being requested. Staff in the purchase ordering department use the requisitions to raise sequentially-numbered purchase orders based on the approved suppliers list, which was last updated 24 months ago. The purchasing director authorises the orders before they are sent to the suppliers.

When goods are received, the warehouse department agrees the quantity to the supplier’s despatch note that accompanies the goods and checks the quality of the goods received. If satisfactory, a sequentially-numbered goods received note (GRN) is completed and a copy sent to the finance department.

Purchase invoices are sent directly to the purchase ledger clerk. At the end of each week, he gives each invoice a unique number based on the supplier code and inputs them to the purchase ledger using batch controls. Invoices are reviewed and authorised for payment by the finance director. All invoices are paid 60 days after input.

Question

Which of the following is NOT a control deficiency in Cherry Blossom’s purchasing system?

A.Production supervisors complete a requisition form and submit it to the purchase ordering department
B.The warehouse department raises a GRN after agreeing the quantity of goods received only to the supplier’s despatch note
C.The purchase ledger clerk gives each invoice a unique number based on the supplier code
D.Payment is made 60 days after the invoice is input into the system

The answer is option A.

My Doubt: But my question is shouldn’t requisition forms be authorized; hence, making it a control deficiency. Something that makes my doubt worse is the next question , which is as follows:

Which of the following controls should be used to address Cherry’s deficiencies in internal control in the purchase ordering department?

Requiring authorisation on requisition forms
The finance director authorises the orders before they are sent to suppliers
Management sets minimum authorised reorder levels for inventory
The approved supplier list is updated on at least an annual basis
A.2 only
B.1 and 4 only
C.2 and 3
D.1, 3 and 4
The correct answer is D.

We are clearly highlighting that
Requiring authorisation on requisition forms is a necessary control activity for the client. Please can you help me understand my doubt concerning question 1.

Sorry that i had to post such a long question.