A client with the diagnosis of breast cancer is scheduled to receive radiation therapy to the affected area. The nurse teaches the client about how to care for the area that will be irradiated. Which client statement indicates the nurse needs to follow up?

A. "I will leave the skin markings intact."

B. "I will protect the skin from sources of heat."

C. "I will wear soft clothing over the upper body."

D. "I will use an oatmeal-based lotion after each treatment."

A polynomial is an expression consisting of variables and coefficients, that involves the operations of addition, subtraction, multiplication .

polynomials are closed under the operations of addition, subtraction, and multiplication.

Polynomials will be closed under an operation if the operation produces another polynomial.

The statement that best explains the meaning of closure of polynomials under the operation of subtraction is

option C. When any two polynomials are subtracted, the result is always a polynomial.