Lady or the tiger

Steven opened the left door he don’t see anything there was nothing inside the room. He walked in to the room and saw a note lying on the ground. He caught paper on and read it. There stood: you have chosen the right door you can marry with my daughter. Steven walk out the door and went to the King. The public was quiet they didn't know what will happens. the king stood up and say
You have choose the right door. You have trust my daughter and this was the first test you're past this test Good. Follow the soldier to your bedroom. And I will call you for the next test tomorrow. Steven followed the soldiers to his bedroom and he slept nicely. the next day the soldiers came to pick him up. and they bring him to the stadium. in the stadium there was a screen. behind the screen ware three girls. He couldn't see who was sitting behind the screen. The king stood up and said This is the last test when you chosen my daughter you can marry her but if you are chose the wrong Lady you are gone die. So chose the right lady you are not gone die. He has chosen the right lady the princes and the marry and they have lucky life