40. Doctors tell us sudden chest pain is a sign for having a heart attack. That may be true for men, _________ That may explain why so many women delay seeking treatment, even though 95% of the women had symptoms new to them such as unusual fatigue, shortness of breath, and anxiety for weeks before the attack. (A) due to 43% of the women who seek medical treatment for the pain. (B) since 57% of the men have higher tolerance for pain than women have. (C) but 43% of female heart attack survivors did not have any chest pain. (D) because 57% of the male victims did not delay heart attacks like women.

45. The mature person is no longer primarily a receiver. He receives but also gives. His giving does not depend on his expectation of return. It is giving for its own sake. Giving and producing are not seen by the mature person as a duty; _________ Just as for the growing child, receiving love and help are the main sources of pleasure, for the mature person pleasure consists primarily in spending his energies productively for the sake of other persons and for outside aims. (A) he should have a sense of responsibility, honesty, and courage. (B) he gives and produces his energies with pleasure for selfless service. (C) everyone works hard and asks for no return in helping others. (D) a receiver sometimes plays the role of a giver depending on the return.

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