In the following question, a sentence is divided into four parts. Choose the part of the sentence which may contain a grammatical error in it. If all the parts of the sentence are grammatically correct and contextually meaningful, choose option (d) i.e., No Error as your answer choice.

Katrina Kaif may be one of the leading lady / (a) in Bollywood but her / (b) debut film is pretty forgettable /(c) No Error