Is the red river acts as the border between which two states

The red river acts as the border between Texas and Okalhoma.

Explanation:

There are two red rivers in the United States of America. One of them is in the northern region and the other flows in the southern region. Red river which flows in the southern part of the United States is the river which acts as a border of two states which are Texas and Oklahoma. This red river flows in the southern part of the United States. The Red river empties itself into the Mississippi river and into the Atchafalaya river.

the answer is the last option or letter d)