Considering Stream Discharge analysis, the discharge of a stream with a width of 4 meters, depth of 0.8 meters, and an average velocity of 0.12m/sec is "0.384 m3/sec."
Stream Discharge is the geographical term used to describe the product of stream velocity, times depth, times width.
The mathematical formula for stream discharge is the velocity (V - length of travel per unit of time such as feet/second) × depth of the water (D - unit of length) × width (W of the water - units of length).
Thus, in this case, we have 4m×0.8m×0.12m/sec => 0.384 m3/sec
Hence, in this case, it is concluded that the correct answer is option B. "0.384 m3/sec."
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