If X and Y are independent continuous random variables with…

If X and Y are independent continuous random variables with variances 2 and 3 and expectation 3 and 5, then which of the following is/are true (1) Var(X+Y) = 5 (2) E(XY)=15 (3) Can only calculate var(X+Y) for discrete random variables (4) insufficient data to calculate var(X+Y)