It would not be surprising to discover that the trade routes between China and the West were opened many centuries, e...

Ravi on August 3, 2019

@lizaclark95,

Happy to help. Let's take a look at (B) and (C).

(B) says, "It is an intermediate conclusion made plausible by the
description of the terrain along which the migration supposedly took
place."

The problem with (B) is that the description of the terrain in the
stimulus supports the idea that the route was attractive, but it does
not support the claim that the migration occurred. Thus, we can get
rid of (B).

(C) says, "It is offered as evidence in support of the claim that
trade routes between China and the West could easily have been
established much earlier than is currently believed."

(C) looks great. The claim in question is provided by the passage's
author as evidence, and the claim it is used to support is correctly
described in (C). This makes (C) the correct answer choice.

Does this answer your question? Let us know if you'd like further clarification!