Period 41 – Topic 8 – Industry sector requirements

Greetings,
I am hoping to submit RAP for Nov 20 session and I am still not sure which topic to choose. I would be grateful if someone could guide me for following:

1. I am aware that Topic 8 being the most popular and easy to get secondary data, is there any other topic which can be researched using solely secondary data?

2. In context of industry requirements for topic 8, if I choose courier companies such as UPS or DHL, would they meet the criteria – “Delivery Services – Operators of mail and package delivery services for commercial and consumer use. Includes courier and logistic services primarily involving air transportation” I am confused about last bit which says that logistic services primarily involving air transportation. For instance, UPS has operations involving both by road and by air shipments. .

3. If I go ahead with courier company UPS, while choosing a comparator, does comparator need to have exactly same operations as of original company being evaluated? For instance, UPS has operations including supply chain management whereas competitor company may not have supply chain operations but operate in similar other major operations.

4. Please suggest if should choose Courier company or Automobile company.

Thank you for considering such a long query.
God Bless