I calmly walked back over pounded on the window six times and waited , I even called out " Stephen are you all right . " He knows you can see through the blinds up close , but she did n't . I saw him get up , get dressed and then the next thing I know he is opening the front door , so I walk over to meet him .
Why did I knock on the glass ?
Pick the best answer from the following options:
A. To make sure it was locked .
B. None of the above choices .
C. To see if it was sturdy .
D. To loosen it for refitting .


B