Answer :
The dog is named " But" .
The paragraph says, Mr. Ryan went to the market with his dog.
He rode on a horse to the market, " BUT" walked till the market.
As, Mr. Ryan went to the market with his dog, and he rode a horse, then it must be the dog who walked to the market
The paragraph says, Mr. Ryan went to the market with his dog.
He rode on a horse to the market, " BUT" walked till the market.
As, Mr. Ryan went to the market with his dog, and he rode a horse, then it must be the dog who walked to the market