Which of the following is not a reason why historians study societal change?

Ato make better plans for the future
Bto predict future patterns and trends
Cto make inferences about causal relationship
Dto estimate how long it would take to build a road system

Verified Answer :

The only option that is not generally a reason why historians study societal change would be "d. to estimate how long it would take to build a road system," since this requires a separate type of research. 

Answer:

D.  to estimate how long it would take to build a road system