Answer: Option (A) is the correct answer.
Step-by-step explanation:
In hydrology, the volumetric flow of rate of water that is transported with the help of a given cross-sectional area is known as discharge.
The formula to calculate discharge is as follows.
Q = A u
where,
Q = discharge
A = cross-sectional area of protion of channel occupied by flow (in
)
u = average flow velocity (in m/s or ft/s)
Thus, we can conclude that discharge is usually measured in cubic meters per second.