Question 26: Mark the letter A, B, C, or D on your answer sheet to indicate the word(s) CLOSEST in meaning to the underlined word(s) in each of the questions following: Primary education in the United States is compulsory .
compulsory (adj): mandatory
A. free of charge: free B. required (adj): required, required
C. neccessary (adj): castrated D. optional (adj): optional, not required
=> compulsory = required
=> Primary education in the United States is compulsory