Do you know the phrase “the grass is always greener on the other side“?

Look at this conversation. Can you guess the meaning?

Fred: I heard that Julie is going to change jobs again! This is the 6th time she has changed jobs this year!

Louise: I heard that too. She always thinks the grass is greener on the other side!

Does it mean

a) the other side has greener grass

b) people are never satisfied with their situation. They always think another situation is better

c) people enjoy going to different places and doing different things

d) people think that changing jobs often is a good thing

The answer is below　↓

 

Answer:

b) people are never satisfied with their situation. They always think another situation is better