Create an activity on arrow diagram based on the following information:

Task A, duration 6, dependent on none Task B, duration 5, dependent on none Task C, duration 3, dependent on none Task D, duration 12, dependent on Task B and Task C Task E, duration 2, dependent on Task A Task F, duration 5, dependent on Task B Task G, duration 1, dependent on Task B Task H, duration 9, dependent on Task E and Task F Task I, duration 7, dependent on Task G Task J, duration 7, dependent on Task H Task K, duration 3, dependent on Task I Task L, duration 5, dependent on Task D