Vector question? Help please

The components of vectors M and N are as follows: M (1, -1) and N (2, 4). The components of the resultant vector M+N are given by:

A:(-1,5)
B:(0,4)
C:(3,3)
D:(1,-3)
E:(1,5)
and explain

In Vectors, the (x,y) notation deals with: (the point on the x-axis, the point on the y-axis)
Therefore, when adding two vectors together, you add the two x-components together and then you add the two y-components together.
M(1,-1)
N(2,4)

Result(1+2,-1+4)
Result(3,3)