I would say B. Do your best to be remembered after you die is the correct answer. A is not correct because the poem is more upbeat and optimistic, and even though what that option says is true, it is not the theme of the poem. C is incorrect because offspring are not even mentioned in the poem. D is rather pessimistic and has nothing to do with the poem - the opposite is true. Thus, we are only left with B, which I believe is correct as the poem urges us to live our lives to the fullest.
