Which statement effectively uses a quotation to relate swift’s claim that he has no personal motive for making this proposal?
a. swift states that his youngest child is nine years old and that his wife is currently past child-bearing.
b. according to swift, he has "not the least personal interest in endeavouring to promote this necessary work."
c. swift explains that his new proposal will result in both "relieving the poor" and "giving some pleasure to the rich."
d. swift writes that he does not stand to make any financial gain from the adoption of his proposed plan.

B). According to Swift, he has "not the least personal interest in endeavouring to promote this necessary work."

Explanation:

Quotations are most likely employed by the authors either to mark the exact language of a source or to highlight/underline a particular idea or thought in order to emphasize it or make it notable.

In the given question, option B displays the statement that most effectively employs a quotation as it represents the exact words or language of Swift that substantiates the point that 'he has no intent to serve his personal motive through this proposal'. The other options are incorrect as they either paraphrase Swift's idea(option C) that could offer adulterated information or does not employ the quotation marks(options A and D) which has chances of inclusion of author's personal opinions. Thus, option B is the correct answer.