Answer:
Last summer Jim mowed just one lawn now he mows three.
Explanation:
ABCs (it would be abc's if it was lowercase)
An apostrophe doesn't pluralize a word, an 's' does.
Answer: reread the text or find or look for key words
Explanation: I usually have to reread the text to find the answer, i could over look it LOL
I have no idea where this text is from but B seems like a reasonable answer!