Keep tabs on (someone)

Do you know the English expression “to keep tabs on (someone)“? Read the conversation below. Can you guess the meaning?

Evan: My mum is keeping tabs on me. She always asks me where I’m going and what I’m doing.

John: Maybe she thinks you will get into trouble!

Does it mean:

a) put something called tabs on someone

b) watch someone carefully

c) help someone

d) shout at someone

The answer is below!↓

 

Answer: b) watch someone carefully