The highlighted paragraph is an explanation that relates to the concept by linking the terms and explaining the relation of the proof with the argument. Thus, options 3 and 1 are correct.
<h3>What is a linking expression?</h3>
The complete question is attached in the image below.
A. The underlined sentence is ______.
1) A piece of relevant supporting evidence
2) Claim or argument
3) an explanation of the reasoning
B. it connects ideas in the text by
1) Explaining how the evidence relates to the argument
2) describing the argument that the evidence and reasoning relate to
3) providing a specific example to support the argument
A linking expression is made up of words and phrases that connect and define an expression in order to create a smooth transition and express the meaning and idea to the readers.
The ideas of the two sentences are expressed and linked to give a proper address and justify the argument stated. The underlined text provides an explanation of the text.
Therefore, the underlined sentence explains the reason.
Learn more about linking expressions here:
brainly.com/question/21601808
#SPJ1