The correct option is A Pitcher of Nepenthes
Pitcher of Nepenthes is a leaf modification. Plants belonging to the genus Nepenthes are carnivorous, using specialized pitfall traps called "pitchers" that attract, capture, and digest insects as a primary source of nutrients.
Nepenthes is a tropical pitcher plant or a genus of carnivorous plants in the family Nepenthaceae. Nepenthes consist of a climbing stem, a tendril that helps in climbing and protrudes from the tip of the leaf.
At the end of the tendril, the leaf is modified to form a pitcher which contains a fluid used to catch the prey.