*Jackie claims that there are identity properties for addition, subtraction, and multiplication. Which of the following statements is correct?*

.....A. Her assertion is correct because all three operations have an identity property.

.....B. Her assertion is false because subtraction does not have an identity property.

.....C. Her assertion is false because multiplication does not have an identity property.

.....D. Her assertion is false because addition does not have an identity property.

I choose

**A**because:

\(\displaystyle \L \;9\,+\,0\,=\,9\)

\(\displaystyle \L \;9\,-\,0\,=\,9\)

\(\displaystyle \L \;9\,\bullet\,1\,=\,9\)

The answer is

**B**. Why is this?