Answer the question on the basis of the following cost data: $\begin{array}{c}\begin{array}{c}\\ \\ \underline{\text{Output}}\\ 1\\ 2\\ 3\\ 4\\ 5\\ 6\\ 7\\ 8\end{array}\begin{array}{c}\text{Average}\\ \text{Fixed}\\ \underline{\text{Cost }}\\ \$50.00\\ 25.00\\ 16.67\\ 12.50\\ 10.00\\ 8.37\\ 7.14\\ 6.25\end{array}\begin{array}{c}\text{Average}\\ \text{Variable}\\ \underline{\text{Cost }}\\ \$100.00\\ 80.00\\ 66.67\\ 65.00\\ 68.00\\ 73.33\\ 80.00\\ 87.50\end{array}\end{array}$
Refer to the data.The total cost of four units of output is:

A) $260.
B) $77.50.
C) $310.
D) $215.

Total Cost

The sum of all expenses, variable and fixed, incurred in producing goods or services.

Average Fixed Cost

The total fixed costs of production divided by the quantity of output produced, typically decreasing as production scale increases.

Average Variable Cost

The total variable costs (costs that change with output level) divided by the quantity of output produced.