Final answer:
The cashier undercharged you because you were owed $0.75 in change but only received $0.50.
Step-by-step explanation:
When calculating change, we subtract the order cost from the amount given. The order cost was $9.25, and a $10 bill was given, so we calculate the following:
$10.00 - $9.25 = $0.75
Therefore, the correct change should be $0.75. However, you were given only $0.50. This means the cashier undercharged you because they gave you less change than you were owed. The correct option is A) Undercharged.