Please help me with a chemistry question regarding rate orders!?

Time, s 0 25 50 75 100 150 200 250
Set 1 [A], M 1.00 0.78 0.61 0.47 0.37 0.22 0.14 0.08
Set 2 [A], M 1.00 0.75 0.50 0.25 0.00
Set 3 [A], M 1.00 0.80 0.67 0.57 0.50 0.40 0.33 0.29

Which of these sets of data corresponds to a:

a.) Zero-order

b.) First-order

c.) Second-order reaction?