Agatha is located at a position of −10 feet relative to the ground. which statement shows how her distance from ground level is determined?
a |−10| = 10, therefore agatha is at a distance of 10 feet
b |10| = −10, therefore agatha is at a distance of −10 feet
c |−10| = 10, therefore agatha is at a distance of −10 feet
d |10| = 10, therefore agatha is at a distance of 10 feet