Consider the following statements in S and R : S : Both sin x and cos x are decreasing functions in the interval (π/2,π) R : If a differentiable function decreases in an interval (a, b), then its derivative also decreases in (a, b). Which of the following is true : (A) Both S and R are wrong (B) Both S and R are correct, but R is not the correct explanation of S. (C) S is correct and R is correct explanation for S. (D) S is correct and R is wrong.
							
Consider the following statements in S and R : 
S : Both sin x and cos x are decreasing functions in the interval (π/2,π) 
R : If a differentiable function decreases in an interval (a, b), then its derivative also decreases in   (a, b). 
Which of the following is true : 
(A) Both S and R are wrong 
(B) Both S and R are correct, but R is not the correct explanation of S. 
(C) S is correct and R is correct explanation for S. 
(D) S is correct and R is wrong.