Choose:
1. ['button_1', 'button_2']
2. ['button_3']

Choose!
1. ['button_1', 'button_2']
2. ['button_3']

Choose:
1. ['button_1', 'button_2']
2. ['button_3']

Choose!
1. ['button_1', 'button_2']
2. ['button_3']

Choose:
1. button_1
2. button_2
3. button_3

Choose!
1. button_1
2. button_2
3. button_3