Which missions were established by Spanish efforts in the early 1700s?

The correct answer highlights specific missions that were indeed established by Spanish efforts in Texas during the early 1700s. Mission San Juan, Mission Concepción, and Mission La Espada are significant for their roles in the establishment of Spanish colonial authority and their influence on the spread of culture and religion among the indigenous populations.

These missions were part of a broader strategy by the Spanish to settle and evangelize the region, often serving as a base for further exploration and a means of converting local Native American tribes to Christianity. The mission system was integral to the Spanish approach to colonization, as it aided in establishing settlements and facilitating trade and military presence in the area.

The missions named in the other options do not all belong to the early 1700s timeframe or were not established in Texas. Some may refer to later established missions or locations that were significant for other reasons, but they do not represent the foundational establishments linked to the early Spanish colonial efforts in Texas, particularly during the 18th century.