Assertion (A) : Insect resistant transgenic cotton has been produced by inserting Bt gene. Reason (R) : The Bt gene is derived from a bacterium.

(a)

Both A and R are true, and R is the correct explanation of A

(b)

Both A and R are true, but R is not a correct explanation of A

(c)

A is true, but R is false

(d)

A is false, but R is true