Final answer:
Frank Borman did not turn down Apollo 11. He was the commander of Apollo 8, the first mission to orbit the moon.
Step-by-step explanation:
Frank Borman did not turn down Apollo 11. He was the commander of Apollo 8, which was the first mission to orbit the moon. Borman and his team made history by becoming the first humans to travel to the moon's orbit. Apollo 11, on the other hand, was commanded by Neil Armstrong and its main objective was to complete a manned moon landing. Borman's involvement with Apollo 8 was a significant achievement in its own right, paving the way for subsequent manned missions to the moon.