Which of the following statements is true about the map above?

The border between Texas and New Mexico is a thin line, indicating an international border.

The border between Alaska and British Columbia is a thick line, indicating an international border.

The border between Haiti and the Dominican Republic is a thin line, indicating a state border.

The border between North Dakota and South Dakota is a thick line, indicating a state border.

The correct answer is the second statement: "The border between Alaska and British Columbia is a thick line, indicating an international border."

Explanation:

Alaska is namely known as the American state and also the British Columbia is a province of Canada. Both of them are mentioned to be the administrative divisions right into their set of respective countries. They somehow belong to the different nations.

The correct answer is the second statement: "The border between Alaska and British Columbia is a thick line, indicating an international border.".

Alaska is an American state and British Columbia is a province of Canada. Although both are administrative divisions of their respective countries, they belong to different nations and the demarcation is made by a thick line, which represents an international border.

As both Texas and New Mexico are states within the United States of America, these subnational entities are under the jurisdiction of the same country and thus this division is demarcated in the map by a thin line, which indicates a state border.