Which of the following is an example of a well-developed thesis statement?

A: Therefore, dogs' therapeutic qualities benefit humans, as seen in these examples.

B: Dogs were first domesticated by ancient Egyptian civilizations thousands of years ago.

C: Dogs are better pets than cats because canine companions are more reliable, friendly, and sociable than feline companions.

D: When is the last time a pet owner heard his or her dog hiss like a snake?