Use the Following Table to Answer the Question Below: the Amount

Multiple Choice

Use the following table to answer the question below: The amount of total output produced from various combinations of labor and capital. $$\begin{array}{l}\quad\quad\quad\quad\quad\quad\text { Units of Capital }\\\begin{array} { c c c c c c } & & 1 & 2 & 3 & 4 \\ & 1 & 20 & 36 & 48 & 53 \\\text { Units } & 2 & 38 & 68 & 88 & 94 \\\text { of } & 3 & 53 & 94 & 122 & 133 \\\text { Iabar } & 4 & 63 & 112 & 148 & 164 \\& 5 & 68 & 120 & 164 & 184\end{array}\end{array}$$ If the amount of capital increases from 3 to 4 units,the marginal product of the fourth unit of labor

A) decreases by 3 units.
B) increases by 8 units.
C) increases by 5 units.
D) decreases by 12 units.
E) none of the above