It allows power boats to have stability while cruising. The cathedral hull is like a trimaran in terehat it has one main and two side hulls stuck together so that has a somewhat square to rectangular shape and therefore exhibits greater stability than a single hulled boat. It became more popular with the advent of fibreglass boats in the 1960's and '70s.
I think that the answer wiloukd be B. For #31 and for #32 A.
Omg I would die to have your points because when I get on people call me a noob because I just got the app like 3 days ago and every time I answer a question some says noob like dang I just started