According to the Environmental Protection Agency, average nitrogen levels in leachate must be less than 10 mg/L to be safe for the environment. Based on this standard and the results of the study, which of the following fertilizer applications is considered safe?
A. 196 kilograms of N per acre.
B. 98 kilograms of N per acre.
C. 245 kilograms of N per acre.
D. None of the tested applications is safe.