This website has information on forms of Human observation to be pretty broad. It doesn't have anything specific with Bolivian villagers or there looms.
http://www.psychologydiscussion.net/behaviour/7-methods-of-studying-human-behaviour/540
Korean families have a tradition to arrange their children's wedding. In this story the Korean family is shown as gold diggers as they are looking for an eligible husband for their daughter, but they don't pay attention to what their daughter wants.
The father rat is very selfish and adamant to his decision. He should ask his daughter about her preference and money is always not the only factor that can keep you happy.
A true or false statement?
I'm guessing 'opinion'?
Sarcasm is an ironic or satirical remark tempered by humor. Mainly, people use it to say the opposite of what's true to make someone look or feel foolish. For example, let's say you see someone struggling to open a door and you ask them, "Do you want help?" If they reply by saying, "No thanks. I'm really enjoying the challenge," you'll know they're being sarcastic. Sarcasm is all about the context and tone of voice, which is why it works better verbally. It's something you'll know when you hear it.