Which detail from the section supports the conclusion that the Spanish were unprepared to protect all of their territory from rival claims? (A) During the 1500s, Spain laid claim to a vast region in North America. Its territory stretched from Florida to Virginia. However, Spain never fully controlled this whole area. (B) In 1564, the French established Fort Caroline in Florida, near the mouth of the St. Johns River. A year later, Spaniard Pedro Menéndez de Avilés led an expedition to Florida. One of his main goals was to destroy French settlements in the region. (C) England later established colonies in Georgia and North Carolina. In 1702 the English attacked St. Augustine again. They also destroyed Spanish missions in northern Florida. (D) In 1684, French explorer René-Robert Cavelier, Sieur de La Salle traveled down the Mississippi River. La Salle named the immense territory he journeyed through "La Louisiane," and claimed it for France. La Salle's actions shocked Spain.