Question

Each sentence contains an appositive phrase. Determine whether the appositive phrase is essential or non–essential. Mar the sentence that punctuates the appositive phrase correctly.
1.-The title the result of much hard work was one of many Ashe would win.
-The title, the result of much hard work, was one of many Ashe would win.
2. -The Keystone Cops popular silent film characters debuted in 1912.
-The Keystone Cops, popular silent film characters, debuted in 1912.
3. -This vacation the longest of my childhood took one month.
This vacation, the longest of my childhood, took one

Answer 1

1. Non-essential - A title usually is the result of hard work, therefore, it's not necessary to include that appositive phrase.

2. Essential - It tells you who the Keystone Corps are.  Otherwise, you would have no idea.

3. It's non essential.

Answer 2

1. Sentence B. Nonessential Appositive phrase : "the result of much hard work" .  This information  is not needed for the sentence to have complete meaning. "The title was one of many Ash would win."

2. Sentence B. Essential Appositive phrase: "popular silent film characters" contains information necessary for the meaning of the sentence, explaining what Keystone Cops is.

3. Sentence B. Nonessential appositive phrase: "the longest of my childhood" is not needed for the meaning of "This vacation took one..."

All the nonrestrictive phrases above are correctly punctuated because they are between commas, in the middle of the sentences.