Use the Following to Answer Questions $\text {Table: Lindsay's Farm}$

Use the following to answer questions : $\text {Table: Lindsay's Farm}$
$\text {The table provides information about the production}$
$\text { function for Lindsay's Farm, which uses labour and land}$
$\text { to produce its produce. The price of labour is \(\$ 50\) per}$
$\text {worker per week and the price of land is \(\$ 20\) per hectare.}$
$\begin{array}{lcc}\begin{array}{l}\text { Quantity } \\\text { of Land } \\\text { (hectares) }\end{array} & \begin{array}{c}\text { Quantity } \\\text { of Labour } \\\text { (workers) }\end{array} & \begin{array}{c}\text { Quantity } \\\text { of Produce } \\\text { (bushels) }\end{array} \\\hline 10 & 0 & 0 \\10 & 1 & 50 \\10 & 2 & 100 \\10 & 3 & 140 \\10 & 4 & 170 \\10 & 5 & 190\end{array}$
-(Table: Lindsay's Farm) Use Table: Lindsay's Farm.Lindsay's variable costs of production:

A) stay constant.
B) are equal to 10.
C) are zero when she produces no crops.
D) fall as soon as she starts producing.