Question 1

Tractable describes a dog that behaves well and listens to its owners.

A dog that is tractable is easily managed or controlled, demonstrating good behavior and attentiveness to its owner's commands.

A) Rotund

Rotund refers to something that is round or plump. This term does not relate to behavior or obedience in dogs, making it an incorrect choice in this context.

B) Reluctant

Reluctant describes a state of being unwilling or hesitant. A dog that is reluctant would not listen or behave well, thus this option does not fit the description needed for a well-behaved dog.

C) Robust

Robust means strong and healthy. While a robust dog may be physically fit, this term does not address the behavioral aspect of a dog listening to its owner, making it an unsuitable choice.

D) Tractable

Tractable accurately describes a dog that is obedient and easy to control. This term specifically highlights the dog's ability to behave well in response to its owner's commands.

Conclusion

Tractable is the only option that directly relates to a dog’s obedience and good behavior. The other options—rotund, reluctant, and robust—do not convey the same meaning and fail to describe a dog that listens well to its owner. Thus, tractable is the definitive answer to the question.