Read the following sentence. By the time David was 30, he will have been playing Tetris for 21 years! Is the tense of was consistent with the tense of will have been playing? Why or why not? A. The tense is consistent because they are both present. B. The tense is not consistent because was is past and will have been playing is present perfect future. C. The tense is consistent because the sentence sounds sensible. D. The tense is not consistent because was is past perfect and will have been playing is present perfect future.