Most likely, Gregor will open the door or someone in his family is going to force the door open. This will reveal Gregor's new form and the reader will get to see how Gregor's family reacts to his sudden transformation. Most likely they will be shocked and afraid at first.
Options two refers to the author being a teenager himself so he would be reliable for this info because it is firsthand.
Letter B
<em>huh? sorry i didn't understand:(((</em>
1. the valley was very steep. 2. the misty air made it hard to see
