12. Why did Mr. Clarke write the letter? A. To provide a work proposal B. To ask for a project extension C. To request an inspection report D. To submit a revised cost estimate12/54Question 12 - 14 refer to following conversation: 12. Why did Mr. Clarke write the letter?To provide a work proposal To ask for a project extension To request an inspection report To submit a revised cost estimateGiải thíchChọn đáp án A