Grampa warns Buck McCoy tha the Simpson are planning to do what?

In "The Lastest Gun in the West", delusional Grampa Abe warns movie western star Buck McCoy that the Simpsons are planning to do what?

A-Ride into town and make trouble
B-Rustle his cattle
C-Ambush him and jump his claim

Highlight for answer: C-Ambush him and jump his claim