NEET 2020 Biology Paper

Option (2) is correct as ileum is a highly coiled tube. Serosa is the outermost layer of the alimentary canal, thus, option (1) is an incorrect statement.
A narrow finger-like tubular projection, the vermiform appendix arises from caecum part of large intestine thus, option (3) is incorrect statement. Ileum opens into the large intestine, thus option (4) is also an incorrect statement.