短文改错（共10小题；每小题1分，满分10分）

Last Sunday morning, when I was having a walk in the park near my home, I came across a crew make a new film with one of my favorite actor. I didn’t have my camera with me at that time, but I rushed back home to get. Unfortunately, by the time I got back, they have finished the scene and the actor couldn’t be seen everywhere. I was really disappointing and about to leave when he walked out a building. He was right there in the front of me! I couldn’t believe my luck—not only did I had my photo taken with him, but he signed his name on my shirt!

如图所示，小车的质量为m₀，人的质量为m，人用恒力F拉绳，若人和车保持相对静止，不计绳和滑轮质量及车与地面的摩擦，则车对人的摩擦力可能是

A.0

B.F，方向向右

C.F，方向向左

D.F，方向向右