Which sentence uses commas correctly?
a. vanderbilt university is in nashville, tennessee, southwest of downtown.
b. call mrs. preston, in new haven, connecticut for information on the art exhibit.
c. in rome italy, you can see ancient ruins over two thousand years old.
d. san diego california, is a fun place to live.

Read the excerpt from "save the redwoods."another, one of the finest in the grove, more than three hundred feet high, was skinned alive to a height of one hundred and sixteen feet from the ground and the bark sent to london to show how fine and big that calaveras tree was—as sensible a scheme as skinning our great men would be to prove their greatness.which  best  describes how the excerpt appeals to readers’ emotions? the excerpt provides facts about the tree, which impresses readers’ scientific minds.the excerpt describes how the tree traveled to london, which excites the readers’ sense of adventure.the excerpt compares the tree to a person, which makes readers feel sympathetic toward the tree.the excerpt explains how to skin a tree, which makes readers feel awed at the height of the tree.

Ineed writing a persuasive essay about why parents should vaccinate their kids

What is the italicized part in the sentence , all of the operators are efficient.