<span>it should be a preprinted document that contains spaces in which the user enters information</span>
They change shape due to a number of reasons.
The easiest reason to understand why they change is that they erode.
The coasts around the the world erode due to waves hitting cliffs, the wind batting against the coasts etc. Over a long period of time we can see that they change in shape.
(sorry I don't know why they move)
The correct answer of this answer is option C. The description of the attire of the strange man say of his social status that he belonged to the nobility. A nobleman uses special fabrics in his clothes. This denotes the status of a nobleman.