Question

add a comma, semicolon, or colon if needed. otherwise, submit the text without any additional punctuation.

at the four corners monument in teec nos pos, arizona, a single point joins four states
utah, colorado, new mexico, and arizona.

Explanation:

Answer:

At the Four Corners Monument in Teec Nos Pos, Arizona, a single point joins four states: Utah, Colorado, New Mexico, and Arizona.