Answer:
One Riot, One Ranger.
Step-by-step explanation:
Texas Rangers are the members of the Texas States police force. Texas Rangers have evolved a lot from it's origin and now serves as an elite squad investigating criminal cases.
The slogan that reflected the determined attitude of the Texas Rangers in law enforcement is One Riot, One Ranger. The slogan was stated by Captain Bill McDonald, when he was the captain of the Ranger. With this slogan he meant that one ranger is enough for one riot, showing the power of one ranger.
Therefore, option D is correct.