Question

If a is a rational number and b is a rational number, then the product ab must be
Responses
A rational.rational.
B imaginary.imaginary.
C an integer.an integer.
D irrational.

Answer 1

If \( a \) is a rational number and \( b \) is a rational number, then the product \( ab \) must be:

**A: rational.**

Rational numbers are closed under multiplication, meaning that the product of two rational numbers is always a rational number.