Let p(x) and q(x) be polynomials as shown below. p(x)=a0+a1x+a2^x2...+an^x^n
q(x)=b0+b1x+b2^x^2...bm^x^m

A:The sum of p(x) and q(x) is an integer, and the difference is a polynomial.
B:The sum and difference of p(x) and q(x) are integers
C:The sum and difference of p(x) and q(x) are polynomials
D:The sum of p(x) and q(x) is a polynomial, and the difference is an integer.

The number of chocolate chips in a bag of chocolate chip cookies is approximately normally distributed with a mean of 12611261 chips and a standard deviation of 118118 chips. (a) determine the 2626th percentile for the number of chocolate chips in a bag. (b) determine the number of chocolate chips in a bag that make up the middle 9696% of bags. (c) what is the interquartile range of the number of chocolate chips in a bag of chocolate chip cookies?