Assertion (A): Methy red has `K_(a) = 10^(-5)`and the acid form, "Hin" is red and its conjugate base `Ind^(Theta)` is yellow.
Reason (R) : `{:(pH=,3,5,7,),((["Ind"^(Theta)])/(["Hin"])=,10^(-2),1,10^(2),),("Colour" =,"Red","Orange","Yellow",):}`
A. If both (A) and (R) are correc, and (R) is the correct explanation of (A).
B. If both (A) and (R) are correct but (R) is not the correct explanation of (A).
C. If (A) is correct, but (R) is incorrect.
D. If (A) is incorrect, but (R) is correct.