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.

C. it marks the failed attempt of the Union Army to invade the Confederate state of Texas

Explanation:

The Second Battle of Sabine Pass was simply the failed attempt by the Union Army when Confederate state of Texas was to be invaded during the period of the American Civil War.

The Battle of Sabine Pass is sometimes referred to as a Confederate victory that's one sided. Therefore, the correct option is C

it is the dominance of   the spanish language and roman catholic region in mexico, french being the official language of several african countries, and the existence of a western-style government in south asian countries

2018 means 2018 ce or common era

there have been other eras too including bce, which included way more years.