Answer:
a. They describe the way freedom looks to oppressed people.
Explanation:
Because oppressed mean prolonged cruel or unjust treatment or control. and walls oppressions builds mean freedom.
The word that could fit the gap is definitely a possessive pronoun such as their, used because it refers to the previous pronoun them
I will come back to you in the the comments it does not let me write the whole thing right here I have limited characters
Answer:
His natural instinct to explore his environment
Explanation:
B