The rule for deriving a multiplication is

Also, we can forget about the factor 4 for now, since we have

So, we will just multiply everything by 4 at the end. Our functions are

For both derivatives we will use the rule

So, we have

We can simplify those expression a little bit:

The formula
thus becomes

And so the final answer is

If you simplify this expression by factoring common terms, you will see that the correct answer is the first one.