A. var trigger = new Windows.ApplicationModel.Background.TimeTrigger (900, true);
B. var trigger = new Windows.ApplicationModel.Background.TimeTrigger(1230, false);
C. var trigger = new Windows.ApplicationModel.Background.TimeTrigger(20, true);
D. var trigger = new Windows.ApplicationModel.Background.TimeTrigger(15, false);
A. Option D
B. Option C
C. Option A
D. Option B
A. this.super.open();
B. this.base.open();
C. base.open();
D. this.prototype.open();