Feel free to (do something)

Do you know the English expression “feel free to (do something)“? Read the conversation below. Can you guess the meaning?

Fran: The research for this project is going to take me a long time!

Eve: Feel free to ask me if you need any help. I’m not so busy at the moment.

Does it mean:

a) have free time to do something

b) do something for no money

c) go ahead and do something

d) feel something freely

The answer is below!↓

 

Answer: c) go ahead and do something