What is the high plateau in central north america called?

The high plateau in central North America is called the Altiplano located in west central South America

You should put in order first
{2.7,9.2,10.9,11.2,12.5,13.6,19.9}
Maximun and mininm are logic

The first quartile, Q1, is the value at or below which approximately a quarter (25%) of all the values ​​of the sequence (ordered) remains; The second quartile Q2 is the value below which 50% of the data remains (Median), the third quartile Q3 is the value below which the three quarters remain ...

So I see answer B and C are the same