The answer to go in the blank would be B) Scarce or the second option.
When we say we make an appeal to convince the audience we are making a request to the public, a serious, crucial or honest one. In this case, to move the audience (the parents) to support our case (go to school later would be easier for them), we have to talk about something that can benefit them from this change, if not they wouldn’t be interested. For example, saying that because is late it isn’t dangerous walking to school, and they wouldn’t have to drive you. In that case, they won’t even have to move from the house and have their own timetable.
Explanation:
The examples of social practices of Nepal are:
1.Marriage
2.Brathabanda
3.Rice feeding(bhat khuai)
4.Funeral (kiriya), etc.
The three things that plants need to make sugar is Sun, Water, and Air
I would go with 50 since according to recent statistics %47 percent of Africans already live in an urban environment. Could the question be outdated?