Astronomy quiz question: first "evening star" to set

Astronomy 210 Quiz 2, spring semester 2015
Cuesta College, San Luis Obispo, CA

A view of the San Luis Obispo, CA sky is shown below for June 10, 2017 with the planets Jupiter and Mars.


Within the next 24 hours, __________ will set first.
(A) Jupiter.
(B) Mars.
(C) (There will be a tie.)
(D) (Neither of these planets will set.)

Correct answer (highlight to unhide): (B)

Over the course of the day, Earth's rotation will cause objects on the celestial sphere to move from east to west, so Mars will set just after the sun sets, later followed by Jupiter soon after midnight. BR>
Section 30676
Exam code: quiz05s7yK
(A) : 9 students
(B) : 32 students
(C) : 1 student
(D) : 5 students

Success level: 71% (including partial credit for multiple-choice)
Discrimination index (Aubrecht & Aubrecht, 1983): 0.15