Whereditgo
Journeyman Pro
Played my first ever comp last week, and mid round I managed to find a fairway bunker. Nothing unusual there, except my ball sat plumb in the middle of a 2" deep puddle 
Everyone in the group I was playing with had different views on what my options were, ranging through playing it as it lies, free drop and penalty drop.
What was the correct option?

Everyone in the group I was playing with had different views on what my options were, ranging through playing it as it lies, free drop and penalty drop.
What was the correct option?