Astronomy current events question: ninth planet tilting the sun?

Astronomy 210L, fall semester 2016
Cuesta College, San Luis Obispo, CA

Students are assigned to read online articles on current astronomy events, and take a short current events quiz during the first 10 minutes of lab. (This motivates students to show up promptly to lab, as the time cut-off for the quiz is strictly enforced!)
Shannon Styrene, "Planet Nine May be Responsible for Tilting the Sun" (October 19, 2016)
Researchers propose that a large ninth planet in the outer solar system may be responsible for the sun's:
(A) periodic magnetic storms.
(B) slow aging.
(C) misaligned tilt.
(D) lack of a companion star.
(E) distorted shape.

Correct answer: (C)

Student responses
Sections 70178, 70186
(A) : 1 student
(B) : 0 students
(C) : 23 students
(D) : 2 students
(E) : 0 students

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