The answer to the question is C
I think it does because people tend to shorthand words like "for" to "4" and "you" to "U." sometimes people become overreliant on stuff like that and they use it even in school or in situations where the shouldn't. grammar online is pretty bad in general too.
That's a really nice quote. My personal favorite is "Life is like riding a bicycle. To keep your balance, you must keep moving" -Albert Einstein
