Choose the best way to correct the underlined problem in the sentence:

Ryan is highly allergic to cats, he requires at least twenty bless-yous every time he visits Mary and her seven cats.

A. Ryan is highly allergic to cats; he requires at least twenty bless-yous every time he visits Mary and her seven cats.
B. Ryan is highly allergic to cats, so he requires at least twenty bless-yous every time he visits Mary and her seven cats.
C. Ryan is highly allergic to cats. He requires at least twenty bless-yous every time he visits Mary and her seven cats.
D. Ryan is highly allergic to cats requiring at least twenty bless-yous every time he visits Mary and her seven cats.

Subject-verb agreement refers to the need for subjects and verbs to agree in number and person. In the sentence provided, the error lies in the subject-verb agreement, specifically in the phrase 'Ryan is highly allergice to cats, he require least twenty bless-yous.' The correction should be: 'Ryan is highly allergic to cats; he requires at least twenty bless-yous.'

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