34. In the last line of the second paragraph (underlined), what does the author mean? (A)The extra cost of the emotion labor should be charged on the employer rather than on the employee. (B) Many research suggests that emotion labors require a cost and should increase the pay to the employee. (C) Emotion labor creates problems that only the employee will know and the employee needs to bear it. (D) A large body of research shows that employee should be paid higher to do the job.