Answer:
C) Life on the plains was difficult because there were limited supplies available.
Step-by-step explanation:
Option C is the correct answer.
From the stated sentence, we will discover that the speaker revealed that the people that lived in that territory actually endured. From the speaker's tone, it means that they endured the difficult in that area.
Also, from the speaker's tone, we can deduce that it will be difficult for some people to live there - the middle of nowhere.