Answer:
The correct answer is D. It is an expression.
Step-by-step explanation:
An operation is a mathematical problem with <em>at least</em> two numbers and <em>at least</em> one operation. This is an expression because, it has 2 numbers, and 2 operations.
It isn't an equation because it doesn't have an equal sign.
Therefore, the correct answer is D. It is an expression.
Hope this helps! :D
