Use the Table Below to Answer the Following Questions

Use the table below to answer the following questions.
Table 12.2.1

-Refer to Table 12.2.1, which gives the total revenue schedule and total cost schedule of a perfectly competitive firm. The short-run equilibrium price of one unit of the good is

A) $3.
B) $10.
C) $15.
D) $25.
E) $30.