Solve the Problem $c=81 \sqrt{n+49}$ , Where $c$ Is the Total Cost And

Multiple Choice

Solve the problem.
-The cost of manufacturing clocks is given by $c=81 \sqrt{n+49}$ , where $c$ is the total cost and $n$ is the number produced. What is $\mathrm{c}$ when no clocks are produced?

A) $\$ 81$
B) $\$ 63$
C) $\$ 567$
D) $\$ 3969$