Engineer: Semiplaning monohulls are a new kind of ship that can attain twice the speed of conventional ships. Due to ...

Claire on May 26, 2019


Hi! I put E for the question. Why is D right?

2 Replies

on October 17 at 04:57PM

I put the same thing ^^ could we get an explanation please?

Shunhe on December 23 at 12:41AM


(E) is a tricky answer that is almost as good as (D) but doesn't quite get there. There are explanations of (D) on other threads on this question by other instructors, so I'll focus on why (E) isn't as good. It's not as complete or accurate, and just distinguishes between the varying costs of transportation, which the conclusion of the argument doesn't focus on. Hope this helps!