Crater Lake is considered one of the deepest lakes in both the United States and the world
The passage specifies that Crater Lake is considered the deepest lake in the U.S. and one of the deepest in the world. From this context, the qualifier "one of the deepest lakes in both the United States and the world" is implied. The other options are false.
B Crater Lake is the only tourist attraction at Crater Lake National Park
C Crater Lake National Park has very few plant species
D Crater Lake is a man-made lake