Most likely A, to insure safety from terrorist.
We will be busy during this week and weekend
Yes, some words that usually nouns can function as adjectives. That is true.
Answer:
He wanted him to climb even higher up the social ladder and be a lawyer
Explanation:
The clue word "however" almost always indicates a "contrast". This is because when using this word, the writer can on one hand agree with what he or she is saying, but offer a different point of view to be considered.