(Figure: Market Supply Schedule 0) What Is the Quantity Supplied $\quad\quad\quad\quad\quad\quad\quad\quad\text { Individual Quantity Supplied }$

(Figure: Market Supply Schedule 0) What is the quantity supplied by Andrey at a price of $15?

$\quad\quad\quad\quad\quad\quad\quad\quad\text { Individual Quantity Supplied }$
$\begin{array}{|c|c|c|c|c|}\hline \text {Price per Unit } & \text { Miguel } & \text { Andrey } & \text { Justin } & \text { Market Quantity Supplied } \\\hline \$ 25 & 3 & 7 & 4 & ? \\\hline 20 & 2 & 5 & 3 & ? \\\hline 15 & 1 & ? & 1 & 6 \\\hline 5 & 0 & 3 & 1 & 4 \\\hline\end{array}$

A) 3
B) 4
C) 5
D) 6