Answer:
I'm not sure about my answer but I think its D.
The author placed such excerpt in order for him/her to describe a clearer picture on the metaphor that he is describing, on how man and woman are confined by the actions that they do in order to be distinguished as such in society.
The author was probably emphasizing these gender-roles assigned to people in society that at times can become suffocating and that people should be liberated from them.
Answer:
An exit plan for a fire drill - to explain steps to take in the event of an emergency.
A company-wide e-mail - to send the same information to many people at the same time.
A dress code policy - to inform people about what they should and should not wear.
A warranty for a tablet computer - to explain what the product's maker accepts responsibility for.
1,2 and im not sure about 4.
The correct answer is B!! :)