Answer:
It's the 4th option.
Explanation:
1/2 of 2 is 1 so 2+1 is 3 and that would make it -1.5 for M. This process is repeated for K and L. You are taking the half of the numbers and adding it to it. These are your new dilations :
K (-3,-1.5)
L (4.5,1.5)
M (3,-1.5)