Concept:
Feminism is a social and political movement aimed at achieving equality and justice for women.
Step 1:
Feminism primarily advocates equal rights and opportunities for women, not specifically for men.
\[
A \text{ is incorrect}
\]
Step 2:
Feminism challenges gender discrimination, patriarchy, and inequality in society.
Step 3:
Gender is considered a social construction because society shapes gender roles and expectations.
\[
R \text{ is correct}
\]
Step 4:
The reason is true independently, but the assertion is false.
Step 5:
Therefore, Assertion is incorrect while Reason is correct.
\[
\boxed{\text{(4) (A) is not correct but (R) is correct}}
\]