Answer: Option C
Answer: (c)
optimist
optimist (N.) : a person who always expects good thing to happen
cynic (N.) : a person who believes that people only do things to help themselves, rather than for good or sincere reasons
pessimist (N.) : a person who always expects bad things to happen 
sycophant (N.) : a person who praises important or powerful people too much and in a way that is not sincere, especially in order to get something from them