The correct options are
B Adhyatma Ramayanam Kilippattu
C Mahabharatham Kilippattu
Ezhuthachan's works were Adhyatma Ramayanam Kilippattu and Mahabharatham Kilippattu. Krishnagatha by Cherussery and Thullal literature of Kunchan Nambiar along with the works of Ezhuthachan contributed enormously to the development of Malayalam language.