Which of the Following Situations Demonstrates Choking

Which of the following situations demonstrates choking?

A) The home team is down by one goal in a soccer match, but the striker completely misses the net when he takes a shot
B) The home team is up by 3 points in a football game, and although they are within scoring range, they decide to go for a field goal instead
C) The visiting team is down by 10 points in a basketball game, and their best shooter only makes lay-ups, rather than going for 3-pointers
D) A gymnast falls when doing her uneven bar routine during practice