please indicate with option is correct in each problem with a clear explanation, thanks..

Evaluate the double integral 01. I = 46 1 = JA 5 daxdy O 2. I = 42 with 0 3. I = 44 A = (x, y) : 5 5257, 3 5y58 0 4. 1 = 50 by first identifying it as the volume of a solid. 0 5. I = 48Reverse the order of integration in the inte- gral 01 1 = [( f (z, y) dx ) dy In 4 I = ( [. s( z , y ) dy ) de , In 4 2 . 1 = f(x, y) dx ) dy but make no attempt to evaluate either inte- gral. In 4 3. 1 = f(x, y) dx) dy f(x, y) de ) dy O In 4 5 . 1 = f(x, y) dx ) dy 0 6. 1 = [ (J f(x, 3) dx) dy