MATLAB: Acquiring related Matrix Members

Question

I have a n by m matrix A and 1 by n array B. Assume

 A = rand(3,5)
 B = [3;5;2]

How can I get 1st rows 3rd element, 2nd rows 5th element and 3rd rows 2. element of A matrix w/o for loop?

Each rows related element is the member of B array as you can see?

Answer 1

   A(sub2ind(size(A),1:length(B),B(:)'))

or

   A((1:length(B))+(B(:)'-1)*size(A,1))