76. (A) what (B) whether (C) while (D) if

61. According to what the author advocates, which of the following groups of people would be considered healthy? (A) People who have strong muscles as well as slim figures. (B) People who are not presently experiencing any symptoms of disease (C) People who can recover from illness even without seeking medical care. (D) People who try to be as possible, regardless of their limitations.