Need help with number 6 please 20 points and brainliest !!!

After the civil war which president was called a "carpetbagger"? a. lincolnb. johnsonb. grant

Which of the following most accurately describes china today

"if i have seen farther than others," said newton, "it is because i have stood on the shoulders of giants." who were the giants to whom newton was referring? could this be said of any scientific accomplishment? explain.