Choose the closest paraphrased version after the following sentence or the italicized part.
If you have wide and keen interests and activities in which you can still be effective, you have no reason to think about the merely statistical fact of the number of the years you have already lived...（ ）
A.正确答案D...the exact length of your lifetime should be your only concern...
B....the value of the years you have lived would be self-evident...
C....you have every reason to forget about the pain in old age...
D....you don't have to worry about your old age...
