Instructions Full Game: These are multiple-choice quizzes with four possible answer choices that include all questions in a given set.     
Identify the following individual:

Lived: 1918 - 2020
Mathematician whose calculations of orbital mechanics as a NASA employee were critical to the success of the first and subsequent U.S. crewed spaceflights. Awarded the Presidential Medal of Freedom in 2015.
Edward Teller
Katherine Johnson
Werner Heisenberg
Georg Cantor