What is significant about the following excerpt from F. Scott Fitzgerald's "Winter Dreams"?

she swung her mashie impatiently and without interest, pitching the ball into a sand-pit on the other side of the green. With a quick, insincere smile and a careless "Thank you!" she went on after it.

Judy's actions on the golf course are similar to the way she treats men.
Judy is a professional golfer, which impresses other golfers at the club.
Judy tends to have a violent temper, which is evident when she plays golf.
Judy is a bad golfer and used the wrong club when trying to hit the ball.

Question

What is significant about the following excerpt from F. Scott Fitzgerald's "Winter Dreams"?

she swung her mashie impatiently and without interest, pitching the ball into a sand-pit on the other side of the green. With a quick, insincere smile and a careless "Thank you!" she went on after it. 

Judy's actions on the golf course are similar to the way she treats men.
Judy is a professional golfer, which impresses other golfers at the club.
Judy tends to have a violent temper, which is evident when she plays golf.
Judy is a bad golfer and used the wrong club when trying to hit the ball.