Let I : fol B(7')2d7' with B(r) = f; f(s)dW(5) and f(s) is deterministic such that f0 (8)2d8

Let I = with B(r) = for f(s)dW(s) and f (s) is deterministic such that f 0 f(s)2ds < oo and W (s) is a standard Brownian motion with variance 1. Find E(12).