It is not plagiarism if I take a sentence that I found and change a few words around. A True
B False

I think it kind of depends but i think probably B false.

Explanation:

I say this because it's best to just reword the sentence. like say "my favorite color is blue" rewrite it as "blue is my favorite color" then it isn't plagiarized. and if you want you can rewrite the sentence and then change a few words.