Answer:
C
Spain couldn't protect its borders
<span> The government exerts complete control over citizens’ lives.
</span>
A totalitarian regime is that which employs a system of governance that is centralized and dictatorial and requires complete subservience to the state. the state controls all aspects of citizen and most notably curtails on liberties and rights.
They needed to find new food sources
No clue what to say to this, i've seen it posted on this website here before tho
D. 18th century I believe.