Hurry! will mark brainliest! which best identifies the adverb clause? a. only 1,600 covered bridges "exist in the world." b. covered "bridges remind us" of days gone by. c. "if you visit pennyslvania," take the self-guided, covered-bridge tour. d. the lehigh valley, "in eastern pennyslvania," has seven covered bridges. the "" are the "adverb clauses"

- "a nonrestrictive clause functions as a modifier to a noun (that is an object, person or concept). these clauses can be described by the following three options: it is set off by comas, it contains a subject and a verbs and it adds nonessential information to the sentence.

for example, in "here is bill gates, who confounded microsoft software company" we can identify "who confounded microsoft software company" as a nonrestrictive clause modifying the noun bill gates. this clause can be describes as a nonrestrictive clause because it is separated by a comma, it adds nonessential information to identify who bill gates is and it must contain both a subject (who) and a verb (confounded)."