In the men's 56kg weightlifting competition at the 2008 Beijing Olympics, Chinese athlete Long Qingquan won the gold medal. The four pictures shown in Figure 3 were taken by photographers

A. Grasping the barbell and preparing to lift it, Long Qingquan gave the barbell a force, but it did not move any distance. He did no work on the barbell;

B. When the barbell is lifted, Long Qingquan gives the barbell an upward force and makes the barbell pass a certain distance. He does work on the barbell;

C. Press the barbell on the shoulders, and Long Qingquan gives the barbell a force. , but there is no moving distance, and he does no work on the barbell;

D. Maintain this state for 3 seconds, Long Qingquan gives the barbell a force, but there is no moving distance, and he does no work on the barbell.

So choose B.