Why were California's valleys considered ideal locations for ranchos?

They were close to military presidios for protection.

They were located along the coast for convenient shipping.

They offered easy access to gold and other valuable minerals.

They provided rich soil and ample grass for grazing animals.

What was the central economic activity on a California rancho?

Building ships for the Spanish navy

Raising cattle for their hides and tallow

Growing wheat and corn for export

Traded for other necessary goods