Which of the Following Situations Is Likely to Be Somewhat

Which of the following situations is likely to be somewhat threatening to self-esteem?

A) Tony loves to play tennis, and being able to play the game well is an important part of his self-identity. His best friend also enjoys tennis and has just won a championship.
B) Penny plays golf very well, although she seldom plays anymore unless she considers doing so to be important to her job. Her best friend also enjoys golf and has just placed first in an important tournament.
C) Mary has just won first place in a guitar competition. Her best friend has won first place in a swim meet.
D) all of the above
E) a and b