B, c, and d because it's the name of a place.
to start a new era in his life
When visits the witches a second time, they say that only when Birnam wood marches towards the castle and only man not born of woman can kill him, it's like a confident boost because these things seem impossible.However, the woods look like they move as an army approaches Macbeth's castle, and Macduff (who he is warned of) was cut from his mother's stomach, not physically born.
Hope this helps!<span />
Honestly I'd answer this truthfully if Shakespear didn't make me want to shoot myself.
The answer is:
A. understand that managing the moon landing while the lunar module had 30 seconds left of fuel required intense concentration.
In the excerpts the narrator mentions the lunar module had 30 seconds left of fuel, so the people who were in charge of the moon landing could not make a mistake, a miscalculation or lose their extraordinary focus. For example, one of the narrators states the men "could not afford to be wrong." Otherwise, the mission could have failed.