Read the sentence.

The squirrel who ran in circles around the circumference of the tree chattered angrily at the curious cat.

Which correctly revises the sentence?

The squirrel, who ran in circles around the circumference of the tree, chattered angrily at the curious cat.
The squirrel who ran in circles around the circumference of the tree, chattered angrily at the curious cat.
The squirrel, who ran in circles around the circumference of the tree chattered angrily, at the curious cat.
The squirrel who ran in circles around the circumference of the tree chattered angrily, at the curious cat.

1 answer

The correct revision of the sentence is:

The squirrel, who ran in circles around the circumference of the tree, chattered angrily at the curious cat.

This option correctly uses commas to set off the non-restrictive relative clause "who ran in circles around the circumference of the tree."