Specimen question raven implied authority

Jasper is the manager of a sports shop. Ravan, the shop owner, allows Jasper to order running equipment but has told him he must not order any other sports equipment. However, Jasper decides to place an order for cycling accessories. Ravan refuses to pay the cycling supplier.

Based on the laws of agency, who is liable to the cycling supplier, and for what reason?

1..Ravan is liable because he gave Jasper responsibility for ordering stock

2.Ravan is liable because Jasper acted within his implied authority as store manager

3.Ravan is liable because Jasper exercised his express authority as store manager

4.Jasper is liable because he acted without authority

Ans is 2 my question is why is the ans not 3 isn’t it expressed authority and if not why so?