Question

María / querer levantarse a las ocho A. quiere B. quieren C. quieres

Answer 1

Maria / wanting to get up at eight is the question
A. want
B. they want
C. You want
so, therefore the answer would naturally be B they want to get up at 8.

Answer 2

The answer you are looking for is: 
A.) Quiere 
Hope that helps!! 
Have a wonderful day!!