Which revision is necessary to create proper punctuation within the sentence? The phrase “born in Genoa” should be set off with commas. The phrase “Christopher Columbus” should be set off with commas. The phrase “never did reach” should be set off with commas. The phrase “mainland North America” should be set off with commas.

citizens are given 25 years of life to prove their worth to society; if they fail to do great things

what are you

karen blumenthal is the author of steve jobs: the man who thought different, and because of her work, she was a finalist in the 2013 yalsa award for excellence in nonfiction award.

it is significant that blumenthal interviewed several people who knew steve jobs personally because this allowed her to gain access to the industry. she has also stated that due to her work in the 1980s, she was able to get acquainted with the process of making computers and other technology, and was able to witness the progress different companies made and to appreciate apple's contribution to it. finally, this close connection with the industry means that her information is more credible than that of a complete outsider.