Which Statement About Pluto's Discovery Is FALSE

Multiple Choice

Which statement about Pluto's discovery is FALSE?

A) It was predicted by Percival Lowell, based on perturbation theory.
B) It was discovered by Clyde Tombaugh close to Lowell's predicted position.
C) It was found in 1930, the first planet found by an American.
D) It was the massive jovian Lowell described as "Planet X" in his calculations.
E) Cold and dark, it was named for the god of the underworld.