I need help with this and the first person who can answer this correctly gets a BRANLIST

Answer:
B
Step-by-step explanation:
Linear Functions have a degree of one.
A) Has a degree of one
B) Has a degree of two
C) has a degree of one
D) has a degree of one
So, b is the answer!
Hope i helped, Brainliest would be appreciated!
Have a nice day!
-Aadi x