Each of the following is supported by one or both of the passages EXCEPT:

Sarah on June 17 at 01:22AM

Clay?

Why not A? I cannot find support for (A) in the passage. The only time I could find clay being mentioned was on line 39, and even here I did not see support to believe clay would specifically be “an important constituent of many, if not all, drilling muds”

1 Reply

Ravi on June 17 at 06:20PM

@sarahpretzel,

Happy to help. Let's look at (A).

(A) says, "Clay is an important constituent of many, if not all, drilling muds."

(A) is discussing the composition of drilling muds, and this topic is
discussed in the first paragraph of Passage A. Here, we find that the
author says that drilling muds are made up of bentonite and other
types of clays (lines 12 and 13), so (A) has support from the passage.
Thus, we can get rid of it since passage A mentions it.

Does this make sense? Let us know if you have any other questions!