Direction: Question consists of two statements, one labeled as the 'Assertion (A)' and the other as 'Reason (R)'. Examine these two statements carefully and select the answer to this question using the codes given below:Assertion (A): Many semiconductors where minimum energy in the conduction band and maximum energy in the valence band occur at the same value of \(\mathop k\limits^ \to \) (wave vector), are preferred for optical lenses.Reason (R): For such semiconductors, the efficiency of carrier generation and recombination is very high.

• A. Both A and R are individually true and R is the correct explanation of A
• B. Both A and R are individually true but R is not the correct explanation of A
• C. A is true but R is false
• D. A is false but R is true