Sarah reasoned that (1) she had earned A's in three previous English classes, and (2) past success predicts future success, so (3) she will likely get an A in her current English class. In this example of rhetorical proof, statement (1) is the .

Supporting material

Explanation:what is supporting material ?

Supporting material refers to that information that we use in order to make a justification for the idea that we present.

she had earned A's in three previous English classes, this is like an evidence we want to use to support the idea that Sarah is likely to get an A again.

Rhetoric proof is a written argument that is used to support a thesis.

Rhetoric proof is divided into three elements : ethos ,pathos and logos.

Logos and ethos aims to persuade our mental capacity to think logically.

Pathos aims to persuade us using our feelings and imaginations in order for us to feel the arguments and see its effect.

the answer should be

the simple past tense of strive.

hope this !