Ya está en forma singular, los rebaños serían plurales.
Answer:
I think it going to be C.
Explanation:
The art or effective or persuasive speaking or writong.
Poor physical health can lead to an increase risk of developing mental health problems.
The sentence offers relative evidence is "according to scientists at harvard, several studies have shown that dog owners have lower blood pressure, than non owners"
The thesis statement is "Having a furry companion can benefit physical health"
THe reasoning, is "since high blood pressure can be bad for your heart this demonstrates how having a pet can help you stay fit and well"