Answer:
The sentence that does not have unnecessary words or phrases is B: Brian is a dedicated employee who enjoys his part-time job.
Step-by-step explanation:
Redundancy in a sentence refers to use of unnecessary words being used more than once in a sentence just by using a different word for a similar word.
Option A has unnecessary words. It says, “We are now studying” and “at this time”. Both are not needed in the same sentence. Option C mentions both “earned” and “by means of working” which makes one of them unnecessary.
Thus, the sentence that doesn’t have redundant words is Option B. It only speaks about the dedicated employee who enjoys his part-time job.