Answer: The Correct answer is 5.
Step-by-step explanation: Because in this plane, the line segment making right angle with vertical axis.
Hence, we apply Pythagoras theorem as we usually do, after that we only take the magnitudes of the numbers not the signs.
First we take the length of Perpendicular only magnitude i.e. |+2 to -2| = 4 .
Then we take Base i.e. |-3 to 0| = 3
Now apply simply Pythagoras Theorem H2 = P2 + B2
H2 = (4)2 + (3)2
H2 = 16 + 9
H2 = 25
H = 5