Which of the Following Best Matches the Description

Which of the following best matches the description?
-Diffuse pollutants,such as agricultural runoff that are not from a single source.

A) point source
B) water table
C) aquifer
D) septic tank
E) unconfined aquifer
F) confined aquifer
G) aquiclude
H) aquitard
I) point source.
J) in-stream uses
K) water diversion
L) artesian aquifer
M) groundwater mining
N) landfills
O) nonpoint source
P) surface impoundment