Use the evidence in the text to select the photosynthetic organism.
A. The Sargasso Sea in the Atlantic Ocean is named after Sargassum algae. This organism floats on the surface of tropical waters and uses energy from sunlight to make food.
B. The shaggy frogfish is able to blend into its surroundings because it looks like a rock covered in algae. The shaggy frogfish also has a small, white fin on its head that it uses to attract other fish. The frogfish can eat these fish in one gulp.
Choose the right answer from the options and respond with its letter.

A