B. The number of candies in the bags from Brand B is greater and less consistent than the number of candies in the bags from Brand A.

When there is a - in front of an expression in parentheses, change the sign of each term in the expression to +

Calculate the LCM of denominators

Calculate the difference

<h2>
Hello!</h2>
The answer is:
The second option,
b.) 
<h2>
Why?</h2>
We are given the functions E(x) and K(x), since they both are function of the same variable, we need to add them in order to find the correct option.
From the statement we know the functions:

and

So, adding the functions we have:




Hence, the answer is the second option,
b.) 
Have a nice day!