Greg is designing a clock face. using the center of the clock face as the origin, he keeps its diameter at 10 units. match the positions of the hours on the clock face to their corresponding coordinates. tiles 3 o'clock (0, -5) 6 o'clock (5, 0) 9 o'clock (0, 5) 12 o'clock (-5, 0)

Based on the given conditions, if the diameter of the clock is 10 units, measuring from the center which is at the origin (0,0), then the radius equals 5.
Plotting in a cartesian coordinate plane, the coordinates are as follows:
3 o'clock = (5,0)
6 o'clock = (0, -5)
9 o'clock = (-5, 0)
12 o'clock = (0, 5)

Answer(a); // soil salinization and waterlogging;