The answer is B. The linking verb is 'is'. Linking verbs do not show any action but they connect the subject of a sentence to a word that gives information about that subject.
I would like to think it woulf be the second option
<h3>There you go:-</h3>
Substantially means <u>greatly</u>.
Please mark as brainliest
Why did you join the club?
she knew that.
biology is the study of life.
is the concert Friday or Saturday?
Stop that immediately!
when are you stopping by again?
the forecast is for rain all afternoon.