I would say either problem/solution or cause/effect
The answer is B, as the sentences do not show cause and effect, set up a comparison, or introduce an idea that has already been brought up.
Answer:
While walls and veils may appear to protect women, they deny women freedom and happiness. ... The portrayal of the sun as "coveting" reinforces the purpose of the pardah, which is to protect women from the dangers of the outside world.
Explanation: