i think its A, it definately not B
Answer:
the invention of machines to do the work of hand tools
Explanation:
Any of these topics would be good for a four-to-five page paper! However, I feel like the first topic would be the most versatile for writing a four to five-page paper. You could describe how boys and girls are different in appearance as well as how their personalities differ as well!
I hope this helps!
