If capital 'K' is plotted on the vertical axis and labour 'L' on the horizontal axis, then the slope of the straight line iso-cost curve will be
A. $$\frac{{{P_K}}}{{{P_L}}}$$
B. $$\frac{{{P_L}}}{{{P_K}}}$$
C. $$ - \frac{{{P_L}}}{{{P_K}}}$$
D. $$ - \frac{{{P_K}}}{{{P_L}}}$$
Answer: Option B

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