While researching a topic, a student has taken the following notes:
<ul> <li>Pluto was discovered in 1930 by Clyde Tombaugh.</li> <li>It was originally classified as the ninth planet.</li> <li>In 2006, the International Astronomical Union reclassified Pluto as a dwarf planet.</li> <li>The reclassification was controversial.</li> <li>Pluto orbits the Sun beyond Neptune in the Kuiper Belt.</li> </ul> The student wants to introduce the controversy over Pluto's status to an audience unfamiliar with it. Which choice most effectively uses relevant information from the notes to accomplish this goal?Which choice most effectively makes the student's point?
- A
Pluto was discovered in 1930 by Clyde Tombaugh.
- B
Pluto orbits beyond Neptune in the Kuiper Belt.
- Ccheck_circle
Pluto, originally classified as the ninth planet after its 1930 discovery, was controversially reclassified as a dwarf planet by the IAU in 2006.
- D
The IAU is responsible for naming celestial bodies.
Explanation
To introduce the controversy, the sentence must outline the original status, the reclassification, and the controversial nature. Choice C does all three. The others omit at least one part.