Answer:
Mr. Aroxa is correct.
Step-by-step explanation:
Since we know that polynomials are closed under addition, subtraction and multiplication as when we will add, subtract or multiply two polynomials we will get a polynomial.
Polynomials are not closed under division because division of two polynomials is not necessarily a polynomial.
We can see it by dividing a binomial by a trinomial. This division will result in a rational expression and it will have negative exponent. Negative exponents are not allowed in polynomials.
Therefore, Mr. Aroxa is correct.