According to Pythagoras Theorem (when the hypotenuse is c) ...? Mcqs

According to Pythagoras Theorem (when the hypotenuse is c) ...?

(A) a2-b2=c2

(B) a2+b2=c

(C) a2-b2=c

(D) a2+b2=c2

Source: This question is taken from the PROVINCIAL MANAGEMENT SERVICE, ETC. BS-17(2016)