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.

Solve the problem. a student earned grades of c, a, b, and a in four different courses. those courses had these corresponding numbers of credit hours: 4, 5, 1, and 5. the grading system assigns quality points to letter grades as follows: a = 4, b = 3, c = 2, d = 1, and f = 0. compute the grade point average (gpa) and round the result to two decimal places. 3.40 3.50 8.75 2.18