Idk but i put b am i wrong
1,2,3,4 is to i, ii, iii, iv, as educated culture is to
.a. advanced culture
.b. primitive culture
.c. multicultural
.d. peace-loving culture

Think of the last time someone asked you something you didn't have the answer to. What was your response?

If you're like most people, you answered quickly with a short, "I don't know," so that you could move on, escape the conversation, and carry on with your day.

However, you don't need me to tell you that simply claiming your own ignorance and hanging that other person out to dry isn't necessarily an effective communication strategy.  

Of course, you're not expected to know how to handle absolutely everything. But, there are alternative phrases that are much more helpful than the obvious brush off a standard "I don't know," provides. Here are four you can use the next time you don't have an answer.

it's lower nubia : ) good luck