What is the author communicating beyond the literal meaning of words on page 39

Asap! can someone give the answers ?

"dogs make wonderful pets because they us stay happy and healthy"the topic sentence is "dogs make wonderful pets" i need writing a sentence that is unrelated to the topic and can be eliminated.

Which statements are true of an allegory? check all that apply. it is an extended metaphor. it has literal and symbolic meanings. it to communicate an abstract concept. it is an exact representation of actual events. it uses objects to represent a single characteristic. it has moral, social, religious, or political significance.