Choose the best proverb that corresponds to the given context.
What would you say to a grumbling groupmate who is finding fault with everything around?
a) Better late than never.
b) East or West, home is best.
c) To get out of bed on the wrong side.
d) Promise little, but do much.
e) Make hay while the sun shines.

Hint: A proverb is a short, well-known pithy saying, stating a general truth or piece of advice. A grumbling person complains or protests about things.

Complete answer:
A proverb originating from the Latin word proverbium, it is a simple, concrete, traditional saying that expresses a perceived truth based on common sense or experience. Proverbs are often metaphorical and use formulaic language.
Now, each proverb has its own usage, the one provided to us in the options are –
Option ‘a’ – better late than never means that something or someone may be late rather than never arrive or happen.
Option ‘b’ – east or west, home is best means that home is the best place for us to be at, no matter where we are or where our home is.
Option ‘c’ – to get out of bed on the wrong side means to be grumpy, unpleasant or complain about something for no obvious reason.
Option ‘d’ – promise little, but do much means that you should do more than what was expected from you or more than what you promised you will do.
Option ‘e’ – make hay while the sun shines means that one should take or grasp the chance to do something that is productive or nice while the conditions are in his/ her favor or are good.
So, as per the sentence and the explanation we can say that the correct option is – option ‘c’, i.e. ‘to get out of bed on the wrong side’.

Note:
Eliminate the ones that share no resemblance to being grumpy or unpleasant, that way you can shortlist the correct solution.