It suggests a lack of life.
Answer:
B) accumulated knowledge
Explanation:
According to my research on the different difficulties that people go through as they get older, I can say that based on the information provided within the question older people tend to shift to activities that depend more on accumulated knowledge. This seems to be the case because they feel they would be better off if they remember all they have previously learned.
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I just took the quiz! The answer is "B"
The reference to the "booming drums of the regiment" indicates that this section of the poem depicts a battle and takes place during a time when military drums were still used during conflict.