The correct statement that explains what happened during Álvar Núñez Cabeza de Vaca’s expedition in 1528 is:
He was shipwrecked near Galveston and survived only because the Karankawa people gave him food and shelter.
Cabeza de Vaca and his crew were shipwrecked on the Texas coast and faced numerous hardships. The Karankawa people played a crucial role in their survival by providing assistance.