Which is a complete sentence?

a.
interesting town of dolores, next to the san juan national forest.

b.
explore six pueblo sites in four states.

c.
streaked red canyon walls and ancient cliffside dwellings.

d.

a winding path that leads to the hot springs

after the signature of the treaty of versailles in june 1919, germany lost nearly 25,000 square miles and a population of 7 million people. these territories included eupen-malmedy area and moresnet which were ceded to belgium. regarding relations with france, germany ceded the sovereignty of the saar coal mines to this country, as well as the provinces of alsace-lorraine.

explanation: