Question

What is the purpose of a counterargument in a persuasive text?

Answer 1

to respectfully address any doubts or objections to the claim

Step-by-step explanation:

from edmentum

Answer 2

A counter argument is necessary, in order to show one's audience that one has taken into account the opposing opinion/thesis of the argument but still sides with their opinion/thesis; it allows the writer to once again prove their thesis.