Answer:
What do i have to do can you explain more please
I sentence that contains an element of bias could be one that states an opinion. For example, "I think her shoes are ugly, mine are better." the person talking is biased because they really like their shoes.
I think it is C because A is missing commas, B doesn't need them and D doesn't need one.
Can you give me more details? Like how long must it be, any special words supposed to be used in the text ect...