Question

The Petrified Forest, visited by me four years ago, is now my favorite national park.

1. Which best describes the underlined phrase?

A nonessential past participial phrase
B essential present participial phrase
C essential past participial phrase
D nonessential perfect participial phrase

Answer 1

Answer: non essential past participle phrase

Explanation:

Answer 2

Answer:

A. nonessential past participal phrase

Explanation:

Past because it says four years ago and stated "visited", also nonessential because if you removed it from the sentence it changes nothing of substance, it's enclosed between two commas.