There's some truth to the idea that alcohol can reduce stress. Alcohol is a sedative and a depressant that affects the central nervous system. At first, drinking can reduce fears and take your mind off of your troubles. It can help you feel less shy, give you a boost in mood, and make you feel generally relaxed.
Probably small group judging by the other answers . Hope I can help.
Both are correct. Example sentences below.
In three hours, we will arrive at our house.
In three more hours, we will arrive at our house.
When using "more", it implies that there was time that was previously passed.
The answers are
1) c
2) b
3) a
4) c