Please help it is for history if you get it right I will make you brainlist! If you post links or viruses I will report you! Please help I am in really deep need for this please!

The battle of sabine pass is important because? a) it was a stalemate between union and confederate armies. b) it resulted in the largest confederate casualty in the war. c) it marks the failed attempt of the union army to invade the confederate state of texas. d) it was won by the union soldiers and marked a turning point in the western front of the war.