While researching a topic, a student has taken the following notes:

* Most, but not all, of the Moon's oxygen comes from the Sun, via solar wind.
* Cosmochemist Kentaro Terada from Osaka University wondered if some of the unaccounted-for oxygen could be coming from Earth.
* In 2008, he analyzed data from the Japanese satellite Kaguya.
* Kaguya gathered data about gases and particles it encountered while orbiting the Moon.
* Based on the Kaguya data, Terada confirmed his suspicion that Earth is sending oxygen to the Moon.

The student wants to emphasize the aim of the research study. Which choice most effectively uses relevant information from the notes to accomplish this goal?

Question

Accepted Answer

Cosmochemist Kentaro Terada set out to determine whether some of the Moon's oxygen was coming from Earth.

Answer

As it orbited the Moon, the Kaguya satellite collected data that was later analyzed by cosmochemist Kentaro Terada.

Answer

Before 2008, Kentaro Terada wondered if the Moon was receiving some of its oxygen from Earth.

Answer

Kentaro Terada's study determined that Earth is sending a small amount of oxygen to the Moon.