smoothing full wave rectyifying circuit

[Abdulrahman Sahmoud]

problem: http://s13.postimg.org/l780tdg1z/screenshot_33.png
it's b ii)

well, I just drew a capacitor in series with the load, but when I looked for the answer it was written that it has to be in parallel, I just wanted to know why?how would it make any difference
thanks in advance