As a Part of a Market Research Project, You Survey

As a part of a market research project, you survey six food trucks across the city to gather data on how many meals they would plan to sale at various prices. The data you collect is in the accompanying table. What is the change in the total supply of meals in your survey when the price increases from $8 per meal to $9 per meal?
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Quantity of Meals Supplied Per Week
$$\begin{array} { | l | l | l | l | l | l | l | } \hline \begin{array} { l } \text { Price per } \\\text { meal }\end{array} & \begin{array} { l } \text { Mario's Taco } \\\text { Stand }\end{array} & \begin{array} { l } \text { Curbside Chargrilled } \\\text { Burgers }\end{array} & \begin{array} { l } \text { Chuckin' Clouds } \\\text { BBQ }\end{array} & \begin{array} { l } \text { Burrito } \\\text { Dan's }\end{array} & \begin{array} { l } \text { La Jefa } \\\text { Cubanos }\end{array} & \begin{array} { l } \text { What a Jerk } \\\text { Jamaican Food }\end{array} \\\hline \$ 6.00 & 100 & 150 & 125 & 200 & 100 & 160 \\\hline \$ 7.00 & 120 & 180 & 150 & 220 & 120 & 190 \\\hline \$ 8.00 & 140 & 210 & 175 & 240 & 150 & 220 \\\hline \$ 9.00 & 160 & 240 & 200 & 260 & 190 & 250 \\\hline \$ 10.00 & 180 & 270 & 225 & 280 & 250 & 280 \\\hline\end{array}$$

A) The quantity supplied rises by 165.
B) The quantity supplied falls by 155.
C) The quantity supplied rises by 155.
D) The quantity supplied falls by 185.