In order to answer this correctly, you must know the meaning of vigilant (keeping careful watch for impending danger) as well as the meanings of all the choices given. Which two words are similar in meaning? When you have that answer, take out the word vigilant, and put the new word in its place. Does it still make sense? If so, you most likely have the correct answer.
Explanation:
I think this is the answer
Answer:
Vain - conceited, too proud (especially of one's looks)
Answer:
Those who do not follow God are not protected by god.
Explanation:
Just took it not to long ago.
Answer:
I think it means calculations involved in determining how much fuel the EDS needs to safely make it down to the planet with its cargo.
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