Productive resources are

types of stores
goods and services that consumers buy
a social science
factors that are used to make goods and services

Productive Resources are resources used to make goods and services.

Therefore the best possible option is the last one - Factors that are used to make goods and services.

the answer is:

c. islam and christianity

explanation:

islam and christianity are widely practiced in africa. islam is practiced due to its spread from the middle east into africa, and christianity is practiced due to the colonization of africa by the british empire.