Need help answering all 3, with as much explanation as you could.. in C Programming Language

PLEASE AND THANK YOU!!!

Consider int val=0xCAFE; Write expressions using bitwise operators that do the following: test if atleast three of last four bits (LSB) are on reverse the byte order (i.e., produce val=0xFECA) rotate fourbits (i.e., produce val=0xECAF)