Which of the following best describes "redundant"?

The choice that best describes "redundant" is necessary repetition of words. In the context of language and communication, redundancy occurs when information is repeated unnecessarily, which can lead to a lack of clarity and conciseness. This term often has a negative connotation, implying that the repeated elements do not add additional value to the message and may even distract from the main point.

In contrast, clarity and precision suggest a quality of communication that is clear and direct, which is the opposite of what redundancy represents. Infrequent and rare refer to something that does not happen often, which does not align with the concept of redundancy. Impactful with minimal wording suggests a style of communication that values brevity and effectiveness, again contrasting with the notion of redundancy, which involves superfluous repetition. Thus, "necessary repetition of words" captures the essence of redundancy accurately.