Proofread the Following Sentences, Which Form an Essay, for Errors

Multiple Choice

Proofread the following sentences, which form an essay, for errors in the past participle. If the sentence contains a past participle error, select "Past participle error." If the sentence is correct, select "Correct." These living blankets have growed on top of dead layers of water-soaked vegetation, thus creating historical treasure troves.

A) Past participle error
B) Correct