KyrosStMarie
Answered

Check if I'm right?
When the river levels began to rise, the townspeople quickly built a _______ to keep their homes from flooding.

citadel

mettle

stalwart

bulwark <-----

Answer :

drakesiris
Correct, a bulwark is a solid wall - like structure raised for defence.
It could be A) or D). Jus google the definitions and compare. But either one sounds correct.