Benny spent 27 minutes talking on the phone on Wednesday. On Thursday, Benny's phone time was 9/10 of Wednesday's time. On Friday, Benny's phone time was 10/9 of Wednesday's time. Which of the following most accurately compares the times Benny spent on his phone? Explain in complete sentences why your answer is correct.
A. Benny spent more than 27 minutes talking on phone both Thursday and Friday
B. Benny spent fewer than 27 minutes talking on the phone both Thursday and Friday
C. He spent more than 27 min on Thursday and less than 27 min on Friday
D. He spent less than 27 min on Thursday and more than 27 min on Friday