Sentence 3 expresses the claim of pediatricians who have children take better care of patients.
Check the attachment. It seems something is wrong.
The correct answer is A. When the subject of a sentence is singular, add "_s" to the base form.
An easy example is "to exist", the base form is "exist" and A strawberry exists shows that you add s when a singular subject is used.
Are you like dumbing it down or summarizing just everything together or separately?
That they look like the dead tributes from the 74th hunger games