What is the best way to: How can you survive if you are stuck in quicksand?

Available choices:
-- Raise your legs slowly while lying on your back, this will expand your base and prevent you from sinking.;
-- Raise upright on your legs after lying on your back, this will expand your base and prevent you from sinking.;
Answer:
Raise your legs slowly while lying on your back, this will expand your base and prevent you from sinking.