Which sentence does not contain any errors in comma usage? a. grandma is someone, who knows how to cook effortlessly. b. steve is talking to the woman, who lives in the apartment right above ours. c. uncle frank is the one who will fix our plumbing. d. here is the firefighter, who will rescue the kitten from our tree.

Which is the best topic sentence for this letter? a) amelia grady likes the middle school fundraiser. b) the basketball team at kennedy middle school enjoys its community. c) kennedy middle school wants to get the community involved in its activities. d) kennedy middle school has organized an event in which you may be interested.

Tobias wolff most likely named his short story "mortals" because the story explores the theme of people coming to terms with the idea that one day they too will die. wanting to find out what their loved ones really think of them. achieving immortalit by being "big people" while they are alive. hoping that they will have accomplished something before they die.

In a data source, such as a spreadsheet, why is it important that top row be the header?