Directions (For the items which follow) :
In this Section you have Eight short passages. After each passage, you will find several questions based on the passage. First, read a passage, and then answer the questions based on it. You are required to select your answers based on the contents of the passage and opinion of the author only.
PASSAGE - V
The art of growing old is one which the passage of time has forced upon my attention. Psychologically there are two dangers to be guarded against in old age. One of these is undue absorption in the past. It does not do to live in memories, in regrets for the good old days. One's thoughts must be directed to the future. This is not always easy, one's past is a gradually increasing weight. The other thing to be avoided is clinging to youth on the hope of sucking vigour from its vitality.
It is difficult for old men to think of the future because

Options

A. they are unable to think.
B. they do not know what the future is like.
C. the past occupies their minds.
D. their feeling that the past was far more happier than the present grows stronger day by day.