Title: the apollo 13 mission

introduction
historical importance
body
the events of the flight
an electrical explosion and fire
crew exposed to near-freezing temperatures
crew barely makes it back to earth alive
conclusion
what we have learned from the mission
using the outline, answer the following question.

in an essay about the apollo 13 mission, where should this sentence appear?

therefore, our knowledge of the moon increased greatly as a result of this mission, and much space technology was later applied to other fields.

in the body of the essay as a supporting detail
in the introduction
in the conclusion
in the body of the essay as a topic sentence