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Verbal·Expression of Ideas·Rhetorical Synthesis

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While researching a topic, a student has taken the following notes:

• Generally, an object will heat up when twisted and cool down when untwisted.
• The twisting of an object is known as torsion.
• A 2019 study led by researchers Zunfeng Liu and Ray Baughman tested the torsional heating and cooling of various fibers.
• They wanted to know whether torsional cooling could be used as a refrigeration method.
• When natural rubber fiber was twisted, its average surface temperature increased by $15.3^{\circ }\mathrm{C}$.
• When single-ply nickel-titanium (NiTi) wire was twisted, its average surface temperature increased by $2.13^{\circ }\mathrm{C}$.

The student wants to present the study’s research question. Which choice most effectively uses relevant information from the notes to accomplish this goal?

A

Torsion, the twisting of an object, will generally cause that object to heat up.

B

Torsional heating and cooling occurs when an object changes temperature while being twisted and untwisted.

C

Researchers determined that when both fibers were twisted, the surface temperature of single-ply NiTi wire increased more than that of natural rubber.

D

A 2019 study researched whether torsional cooling could be used as a refrigeration method.