II. Grammar In question 19 to 27, each sentence has a blank space. Select the answer choice—( A ),( B ),( C )or ( D )—that best completes the sentence. In questions 28 to 36, each sentence has four underlined parts—( A ),( B ),( C )or ( D ). Select the underlined part that is NOT correct in grammar or style. 19.Not until the development of processed sugar__________ . (A)chocolate became a delicacy (B)and chocolate became a delicacy (C)chocolate a delicacy became (D)did chocolate became a delicacy