<em>One very popular hobby </em>is C) a complete subject.
A complete subject consists of more than one word, and since there are four words that make up the subject, it is complete, and not simple.
Initial (or fore) clipping retains the final part of the word. Examples: bot (robot), chute (parachute), roach (cockroach), gator (alligator), phone (telephone), pike (turnpike), varsity (university), net (Internet).
Answer:
It illustrates the idea that many people tried unsuccessfully to find Fawcett. It proves that David Grann is a more capable explorer than James Lynch. It suggests that Fawcett's theories about a "lost civilization" were correct.
The answer is d. it is more detailed
