Question #$2$:

$(3$ Points$)$

Suppose the grades of $6$ students are stored in a two$-$dimensional array. Each student has $4$ marks, each row represents a student, the first cell in the row stores the number of the student $($Student$\_$id$),$ and the last cell in the row stores the calculated average for the student's marks.

Write functions which do the following:

Display the number of the student that has the highest mark

Sort the rows by Student Id;

Add bonus $+5$ to each mark to each student who has the minimum average.