Yo Smitty,

I'm headed out to Grand Park to toss the Frisbee with Jayson. Grab some water and head over when you get home. Catch you in a bit.

Peace,

Rusty

Which words from this short letter best contribute to its informal style?
A.
"Yo" and "Peace"
B.
"water" and "home"
C.
"Grand" and "headed"
D.
"I'm" and "Frisbee"