1.B
https://drive.google.com/file/d/1n8UArmtu58xjREVyDLJPoVsf8FYBDvnK/view?usp=sharing
3.A
https://drive.google.com/file/d/1HtvVMpLfdOCUShU_xWwVh03_7gQt_UOp/view?usp=sharing
