为自己加油

Choose the closest paraphrased version after each of the following sentence or italicized part.

This [not living in memories] is not always easy; one's own past is a gradually increasing weight.（）

A.
…as they get older, people find it harder to remember their past.
B.
…as they grow older, people accumulate more experience.
C.
...to old people, their past is becoming more important.
D.
…to old people, their past is becoming a heavy burden.