(A) Certain psychotherapists practice agediscrimination.
This isn't the main intention of the argument
(B) Elderly people are better able to benefit from psychotherapy than are youngerpeople.
The argument doesn't mention who's better able to benefit
(C) Elderly people should not be reluctant to undergo psychotherapy.
Yes,
"some elderly people feel discouraged about trying psychotherapy. They should not be" - THis gives the evidence of the conclusion
(D) Characteristics associated
...
This isn't the main intention of the argument
(B) Elderly people are better able to benefit from psychotherapy than are youngerpeople.
The argument doesn't mention who's better able to benefit
(C) Elderly people should not be reluctant to undergo psychotherapy.
Yes,
"some elderly people feel discouraged about trying psychotherapy. They should not be" - THis gives the evidence of the conclusion
(D) Characteristics associated
...
