Billy Chan Saves a Moark Named Mark

There's a moark in the Monterey Bay Aquarium! The CIA has heard rumors of a shark fin moving through the sand at the bottom of one of their tanks. He was put in there by accident, and a marine biologist might discover him at any moment.
If they do, there will definitely be questions. The CIA needs my help to get that moark out of there.
This is where you come in. These missions are hard, and I need your help to make decisions. Let's see if we can get that moark without causing a ruckus or destroying the tank...