To the untrained eye, it is difficult to distinguish a ruby _________ a garnet.
0
writingWhich choice completes the text so that it conforms to the conventions of Standard English?
A
from
B
between
C
with
D
and
Correct Answer: A
Choice A is the best answer. The correct idiomatic structure is "distinguish X from Y."
Choice B is incorrect because "distinguish... between" would require "distinguish between X and Y," not the structure used here. Choice C is incorrect because "distinguish... with" is not standard usage. Choice D is incorrect because "distinguish... and" is grammatically incorrect without "between."