Which of the following types of pollution is cultural (accelerated) eutrophication?

Eutrophication is the dense enrichment of chemical nutrients (such as nitrates and phosphates) in a body of water, leading to excessive growth of algae. When human activities (like agricultural runoff, industrial effluents, and sewage dumping) artificially accelerate this natural process, it is specifically termed cultural or accelerated eutrophication. It is a major form of water pollution.