What is a common benefit of writing and the wheel?

A. Both made mathematics possible.

B. Both made trade easier.

C. Both allowed for city planning.

D. Both were necessary for architecture.

B. Both made trade easier.

It should be B! it made trade easier. It made it easier to plan different routes - and it definitely made it easier if you actually move to that place with as less walking as possible with the wheel.

I hope all is well, and you pass! (: Good luck, rockstar!