Which choice completes the text so that it conforms to the conventions of Standard English?
A
lifelike but
B
lifelike
C
lifelike,
D
lifelike, but
Explanation
Correct answer: C.
Choice C is the best answer. The convention being tested is punctuation between a subordinate clause and a main clause. This choice correctly uses a comma to mark the boundary between the subordinate clause (“While…lifelike”) and the main clause (“others look to the past”).
Why the other choices are wrong
Choice A
Choice A is incorrect because it results in an incomplete sentence with no main clause.
Choice B
Choice B is incorrect because it fails to mark the boundary between the subordinate clause (“While…lifelike”) and the main clause (“others…past”).
Choice D
Choice D is incorrect because it results in an incomplete sentence with no main clause.