An object which weighs 26 N when at rest is placed on a scale in an elevator. If the reading on the scale is 34 N, what are the magnitude and direction of the elevator's acceleration?
a) 3.02 m/s² upwards
b) 3.02 m/s² downwards
c) 0.52 m/s² upwards
d) 0.52 m/s² downwards