by a dog that was tied up under a fucking truck . he learned his lesson , but abigail has bite wounds on her face that i now have to go pay the vet to fix .

OPT: A). Abigail must have attacked the dog under the truck , and I must have taught him a lesson . B). I must have attacked Abigail , and I must have taught him a lesson . C). The dog under the truck must have attacked Abigail , and I must have taught him a lesson . D). The dog under the truck must have attacked me , and Abigail must have taught him a lesson .
Q: What must have happened to the dog tied under the truck ?
C).