A.
The Red cross is a Liaison for the families of Soldiers stationed in other countries, acting as a go-between for separated spouses, parents, and children.
B.
The Red Cross is a liaison for the families of soldiers stationed in other countries, acting as a go-between for separated spouses, parents, and children.
C.
The Red cross is a Liaison for the familles of soldiers stationed in other countries, acting as a go-between for separated spouses, parents, and children.
D.
The Red Cross is a liaison for the familles of Soldiers stationed in other countries, acting as a go-between for separated spouses, parents, and children.
Answer Explanation
This sentence uses correct capitalization by capitalizing the first letter of "The Red Cross" as a proper noun, and the first letter of the sentence. Additionally, it follows proper capitalization rules for the names of organizations and titles.