In squamous cell lung cancer, which of the following drug is not effective

Q. In squamous cell lung cancer, which of the following drug is not effective
A. Irinotecan
B. Pemetrexed
C. Carboplatin
D. Etoposide
Answer: Pemetrexed

A. Irinotecan
B. Pemetrexed
C. Carboplatin
D. Etoposide
Answer: Pemetrexed