-The Table Gives the Demand and Supply Schedules for Boat

Multiple Choice

$$\begin{array} { | l | l | l | } \hline \begin{array} { l } \text { Price } \\\text { (dollars per } \\\text { ride) }\end{array} & \begin{array} { l } \text { Quantity } \\\text { demanded } \\\text { (rides per } \\\text { day) }\end{array} & \begin{array} { l } \text { Quantity } \\\text { supplied } \\\text { (rides per } \\\text { day) }\end{array} \\\hline 2 & 100 & 40 \\\hline 4 & 90 & 50 \\\hline 6 & 80 & 60 \\\hline 8 & 70 & 70 \\\hline 10 & 60 & 80 \\\hline 12 & 50 & 90 \\\hline\end{array}$$
-The table gives the demand and supply schedules for boat rides. If the supply of boat rides increases by 20 rides a day, the price will __________.

A) remain unchanged
B) rise to $6 a ride
C) fall to $6 a ride
D) rise to $10 a ride