The correct answer to this open question is the following.
Although the are no options provided or further references, we can answer in general terms.
The ways in which Cabeza de Vaca and the other survivors were 'forced to cope with native North America on its own terms were the following. He and the others had to learn how to live with the Native American Indians of what today is the territory of Texas. Of course, he had to learn the language of these Native American Indians, and then, their customs and traditions so he could understand how they thought and behave. After a while, he could encounter the other three survivors of the Spanish expedition.
