This is a question with answer options. Goal: To prepare the ground beef for the shepards pie

Which of the following methods is more reasonable for accomplishing this goal?

Available options:
[1]. add to large saute pan and cook over medium-high heat until no pink remains, roughly 4-5 mins.
[2]. add to large saute pan and cook over medium-high heat until all pink remains, roughly 4-5 mins....I think the answer is
[1].