A random process X(t) is given by X(t) = A sin(uwt+ 0), where A is a uniformly distributed random variable with mean E[A] and variance Var(A). Then, the variance value of X(t) is a O Var(A) sin? (wt+ O) .b O sin? (wt+ 0) .c O Var(A) sin? (wt .d O Var(A) sin(wt+ 0)