The answer is B as many monomers combine together, breaking their carbon carbon double bonds to form one large polymer.
The answer is RNA because DNA for human .
Recall that a period is horizontal, and a group is vertical.
So if cobalt is moving "down" a period, it would be most logical to say that it would be Ni, or nickel. It could also be Copper, Zinc, Gallium, and so on. Make sense?
In How to Kill a Mockingbird, Atticus warns them not to kill a mockingbird, because it doesn't harm anybody. Boo Radley could be considered the mockingbird, because although he is away by himself and harming nobody, the children mock and disturb him.