What was most likely the first domesticated animal?

We first domesticated farm animals, sheep and goats were among the first domesticated roughly 11,000 years ago.

Cats became pets around 7000 B.C. with the advent of agriculture.

No one can pinpoint exactly when humans first started keeping dogs as pets, but estimates range from roughly 13,000 to 30,000 years ago.

A team of archaeologists recently presented new evidence that horses were domesticated in 3500 B.C.—about a thousand years earlier than previous estimates

The answer would be a.