Choice A is incorrect because the people are wearing life-jackets not coats. Types of clothing are often tested in Part I.
Choice B is incorrect because the boat is not yet in the water. The people are pulling the boat into the water. When you are analysing a photo make sure that you note the main action that is taking place.
Choice C is incorrect because the life-jackets are on the people, not in the boat. Be careful not to choose a statement just because you recognize a vocabulary word from the photo.
The correct answer is D.