C)simile
It has like in the sentence and is comparing it to something else
They are both originally Mexican but Frida kahlo was born in Texas and Pat mora was born in Mexico City.
Using paragraph details that support each other.
Yes because it has a subject which is both of the candidates and a verb that begins to explain what they are doing or normally do. They radiate confidence on camera.
"Both of the candidates" can be replaced with the word "they" and that may help you when deciding what is considered a complete sentence.