Astronomy current events question: Venus habitable up until recent resurfacing?

Astronomy 210L, fall semester 2019
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!)

Jason Daley, "Venus Could Have Been Habitable for Billions of Years" (September 24, 2019)
smithsonianmag.com/smart-news/venus-could-have-been-habitable-billions-years-180973203/

Venus may have had a stable, hospitable climate up until a massive resurfacing event, based on:  
(A) computer simulations.
(B) dry riverbeds and oceans.
(C) organic compound traces.  
(D) ancient Egyptian hieroglyphs. (E) analysis of rock compositions.  

Correct answer: (A)

Student responses
Sections 70178, 70186
(A) : 17 students
(B) : 12 students
(C) : 1 student
(D) : 0 students
(E) : 6 students