A reader can best combine the information in the excerpts to
understand that managing the moon landing while
the lunar module had 30 seconds left of fuel required
intense concentration.
O understand that having only 30 seconds of fuel
could easily have become a disaster while
Armstrong was landing the lunar module.
o understand that Armstrong radioed mission control
when the lunar module landed on the moon at 4:18
p. m. EDT.
O understand that it was impossible for the lunar
module to land on the moon with only 30 seconds
left of fuel.

A. understand that managing the moon landing while the lunar module had 30 seconds left of fuel required intense concentration.

Explanation:

From the excerpts given, it is mentioned that the lunar module was out of fuel and had less than thirty seconds of fuel left and as a result, the margin of error was very slim or even nonexistent.

This put pressure on the control tower as they had to keep their focus, knowing that any mistake would be fatal.

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