I’m pretty sure formal is not
Answer:
c
Explanation:
It cant be a because of plants
it cant be b because it just dont make sense
it cant be d because you can see non living too
it helped bring over different culturally and different type of spice such as pepper, ginger ,nutmeg it was developed by indians and arab merchants. by the suez canal opening it adapted to steam bouts and new communication device...
hopfuly this helps some ^v^