Read the following passage and mark the letter A; B; C or D to indicate the correct answer to each of the following questions, Read the following passage and mark the letter A. B. C. or D to indicate the correct answer to each of the following questions., Read the following passage and mark the letter A.B.C or D to indicate the correct answer to each of the following questions., Read the following passage and mark the letter A. B. C or D to indicate the correct answer to each of the following questions.