Correct Answer:
B. 3
In a Cartesian coordinate system, a point is represented by its coordinates (x, y). The x-coordinate indicates the horizontal distance from the y-axis, and the y-coordinate indicates the vertical distance from the x-axis.
For the point (2, 3), the x-coordinate is 2 and the y-coordinate is 3. The distance of this point from the x-axis is precisely its y-coordinate. Therefore, the distance is 3 units, making option 'B' correct.
Distractor 'A' (2) represents the distance from the y-axis. Distractor 'C' (5) is the sum of the coordinates (2+3), which is not a standard distance measure. Distractor 'D' ('o') is not a valid numerical distance.