What was Jesse demonstrating when he used sarcasm

A)  metalinguistic awareness 
B)  telegraphic speech 
C)  overregularization 
D)  fast mapping

Metalinguistic Awareness

Metalinguistic Awareness is the ability to think about and reflect upon the nature and functions of language itself.

Sarcasm

The use of irony to mock or convey contempt.

Telegraphic Speech

A simplified speech pattern used by young children, characterized by short, simple phrases that contain only the essential information, much like an old-fashioned telegram.