Question 74

The sentence that uses the word parallel as a noun is D.

In option D, "The parallel lines extend in the same direction and will never meet," the term "parallel" is used as a noun to refer to the specific lines that are equidistant and never intersecting.

A) The piece of music uses parallel intervals in pitch.

In this sentence, "parallel" functions as an adjective describing the intervals in music. It does not serve as a noun, as it describes a characteristic rather than identifying a specific entity.

B) The teacher asserted that the quality of the student's film was without parallel in her experience.

Here, "without parallel" is a phrase where "parallel" is used in a noun-like context, but it is not a standalone noun. It suggests uniqueness but does not directly denote a specific entity, thus failing to meet the criteria of the question.

C) The diplomat's intelligence parallels the king's wit.

In this option, "parallels" is used as a verb, indicating a comparison or similarity between two subjects. It does not function as a noun, which is required by the question.

D) The parallel lines extend in the same direction and will never meet.

This sentence uses "parallel" as a noun, referring specifically to the lines that are parallel to each other. It is the only option that satisfies the requirement of the question by identifying a specific concept.

Conclusion

Option D is the only choice where "parallel" is used as a noun, clearly denoting the lines that do not intersect. All other options either use "parallel" as an adjective or verb, failing to fulfill the criteria set in the question. Thus, D is definitively the correct answer.