Final answer:
The sentence 'Although Bradley Hall is regularly populated by students, it is seldom studied as a structure.' can be made more concise by removing repetition and unnecessary words.
Step-by-step explanation:
The original sentence could be made more concise by saying 'Although students regularly populate Bradley Hall, it is seldom studied as a structure.' This eliminates the repetition of 'by them' and condenses the information to focus on the main points of the sentence. Instead of mentioning that the students are close to the building, we use the word 'populate' to imply their proximity. Additionally, we remove 'undertaken' by replacing it with 'study' to streamline the sentence.
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