Soil Conservation Structures

The horizontal interval ($HI$) between two consecutive contour bunds having vertical interval $VI$ on land slope $S\%$ is calculated as:

Options:

• (A) $HI = \frac{VI}{S} \times 100$
• (B) $HI = VI \times S$
• (C) $HI = \frac{S}{VI} \times 100$
• (D) $HI = \sqrt{VI \times S}$