A
Step-by-step explanation
Step 1
set the inequalities
a) as the charge is $2/hr up to a maximum charge of $12 for a day
then, let's check every hour
[tex]\begin{gathered} if \\ the\text{ time is betw}en\text{ 0 hours and 1 hour the cost is 2} \\ so \\ 2\text{ if 0}and so on[tex]\begin{gathered} 2\text{ if 0}note that after 6 hours we got in the limit of 12, so we won't pay any more for the rest of the day, the day has 24 hours, so
after 5 hours and less or equal than 24 hours , the cost is the same, : $12
hence
[tex]\begin{gathered} 2\text{ if 0}therefore, the answer is
A
I hope this helps you