The charge for parking in a parking lot is based on the piecewise function where x is the time in hours and y is the cost in dollars. What is the charge for parking for 3.75 hours?

a- $10
b- $12
c- $13
d- $15

Without the actual piecewise function provided, it is not possible to determine the charge for parking for 3.75 hours. The answer depends on the specific rates and intervals within the piecewise function.