According to Snowball, they must send out more and more pigeons and stir up rebellion among the animals on the other farms.

A$.$ Snowball is idealistic in his beliefs and hopeful for the rebellion.

B$.$ Snowball is using the pigeons in the same way Napoleon uses the dogs.

C$.$ Snowball believes violence is the key to solving any of the animals' problems.

D$.$ Snowball is having second thoughts about the rebellion that has happened on their farm.