People may speak to one another politely and still be divided by issues of race.
Step-by-step explanation:
The answer about speaking to one another politely is the best option for this passage. In the passage, both the white man and Beneatha speak to each other with politeness.There is a conflict that must be resolved in this passage.
The passage shows no conflict that must be resolved. It is clear that a white man showing up at the door is not a typical occurrence, but that doesn't seem to be a conflict in need of resolving.