In what ways did California's geography influence the building of Spanish forts and missions?

Building forts and missions inland where the soil was rich provided better opportunities for farming.

Building forts and missions in the northern part of the state provided shelter in densely populated forests

Building forts and missions along the southern coast provided easy access to trade routes.

Building forts and missions in mountainous areas near Gold Rush towns provided opportunities for wealth.

which one is right?

The correct answer is:

Building forts and missions along the southern coast provided easy access to trade routes.