Arrange these sentences to make a good text!

How to operate a mobile phone

1. Press the “call off” button to end conversation.

2. Wait until the other says “hello”.

3. Press the “power” button.

4. Wait until the signals are full.

5. Start the conversation.

6. Press the number you want to call.

A. 3 – 6 – 4 – 5 – 2 – 1

B. 3 – 2 – 6 – 4 – 5 – 1

C. 3 – 4 – 6 – 2 – 5 – 1

D. 3 – 5 – 6 – 2 – 4 – 1