The correct option is A caecum
The vermiform appendix is a narrow finger-like tubular projection arising from the caecum of the large intestine. Caecum is a blind sac at the junction of small and large intestine. It forms the first part of the large intestine. The other two parts of the large intestine are the colon and the rectum.
Pyloric stomach is that portion of the stomach which opens into the first part of small intestine.