Step 1: Understand the concept:
Motivation is the process of stimulating people to act. We have to check whether Assertion (A) and Reason (R) are each true, and then whether R explains A.
The correct option is (B).
Step 2: Check Assertion (A):
Motivation can be positive, such as pay rise, promotion and recognition. It can also be negative, such as punishment or threats.
So Assertion (A) is TRUE.
Step 3: Check Reason (R):
People are heterogeneous. They differ in their expectations, perceptions and reactions, so one thing does not motivate all alike.
This is a correct statement from the features of motivation, so Reason (R) is TRUE.
Step 4: Does R explain A:
Motivation is positive or negative depending on whether the manager uses rewards or fear as the push.
The difference in expectations of people explains why motivation is a complex process. It does not explain why it can be positive or negative.
So R is not the correct explanation of A.
Step 5: Why the other options are wrong:
Option (A) says R explains A. We have seen it does not.
Option (C) says both are false. Both are true.
Option (D) says R is false. R is true.
Final Answer:
Both (A) and (R) are true, but (R) does not explain (A). This is option (B).