The student wants to contrast the two samples. Which choice most effectively uses relevant information from the notes to accomplish this goal?
A
When the fibers were twisted as part of the 2019 study, the surface temperature of both samples increased.
B
In 2019, researchers studied the effect of torsional heating on various fibers, including samples of SEBS rubber and TPU.
C
Twisting an object will generally cause its temperature to increase, a process known as torsional heating.
D
The SEBS rubber sample used in the 2019 study was thicker than the TPU sample.
Explanation
Correct answer: D.
Choice D is the best answer. The sentence contrasts the two samples, noting that the SEBS rubber sample, at 4 millimeters thick, was thicker than the TPU sample, which was 3 millimeters thick.
Why the other choices are wrong
Choice A
Choice A is incorrect because the sentence mentions a similarity between the TPU fiber and the SEBS rubber; it doesn’t contrast the two samples.
Choice B
Choice B is incorrect because the sentence indicates that both the SEBS rubber and TPU samples were part of the 2019 study; it doesn’t contrast the two samples.
Choice C
Choice C is incorrect because the sentence describes the process of torsional heating; it doesn’t contrast the two samples.