D. Every high school located near a body of water should make students pass a swimming test in order to graduate
Explanation:
The central idea is to have students do swimming test so it would make it safer and have less people drowning. A, just talks about the incidents which isn't what it is mostly about, B just says they need to eliminate them but it doesn't say how which isn't correct either. C states it irresponsible but it doesn't show the solution, that's why the answer is D.
