Option A or option B
Okay, I agree with Chuck that this is a hypothetical question. But option B in this comic would need some concretization in order to be able to make a qualified decision. Where in the ocean is this rock? Are we talking arctic sea or Tahiti? How far does the rock reach out of the water? How am I being tied to it? What are the weather and the waves like? Which sharks would surround me? How many? What type of lasers would they be equipped with? Questions upon questions!