Which of the following are methods of relative aging of rocks select the correct three answers

1. Superposition: This method states that in undisturbed rock layers, the youngest rocks are found on top, while the oldest rocks are found on the bottom.

2. Original horizontally: This method assumes that sedimentary rock layers were originally deposited in horizontal or nearly horizontal layers.

3. Cross-cutting relationships: This method states that if a rock layer or feature cuts across another rock layer, it must be younger than the layer it cuts across.