Question

In a right triangle ABC is right-angled at B If P and Q are points on the sides AB and BC respectively then
a. AQ² + CP² = 2(AC²+PQ²)
b. 2(AQ²+CP²)=AC²+PQ²
c. AQ² + CP²=AC²+PQ²
d. AQ+CP=1/2(AC+PQ)