![](https://cos-cdn.shuashuati.com/pipixue-web/2020-1231-2005-12/ti_inject-812ce.png)
Accidental flooding of the engine room bilges by the bilge main is prevented by( ).
A.
stop-check valves installed in the bilge suction manifolds
B.
using a positive displacement reciprocating bilge pump
C.
installing educators in all bilge rose boxes
D.
installing a swing check before each bilge valve