Which statement is punctuated correctly?

Question

Selena, started playing hockey, her favorite sport when she was seven because her older sister was a star goalie.
Selena started playing hockey, her favorite sport when she was seven because her older sister was a star goalie.
Selena started playing hockey, her favorite sport, when she was seven because her older sister was a star goalie.
Selena started playing hockey her favorite sport, when she was seven, because her older sister was a star goalie.

Answer 1

The statement that is punctuated correctly is:

"Selena started playing hockey, her favorite sport, when she was seven because her older sister was a star goalie."