The Cost of Manufacturing Clocks Is Given By $c=49 \sqrt{n+9}$ , Where

Multiple Choice

The cost of manufacturing clocks is given by $c=49 \sqrt{n+9}$ , where $c$ is the total cost and $n$ is the number produced. What is the cost when no clocks are produced?

A) 441
B) 49
C) 147
D) 21