Answer:b. Defense against cultural difference.
Step-by-step explanation:
Defense against cultural differenceis occurs when one thinks that their own culture is the only good one and other cultures doesn't come any closer to that.
This person believes in using "us" when referring to all those in his or her culture but refer to those from other cultures as "them". When they refer to "we" they consider themselves and others in their groups as more important or superior and everyone as inferior.
Usually these people are intimidated by other cultures so their defence mechanism is to criticize these other cultures in order to feel better about their own culture.