Several typed questioned documents have a unique mark in the upper right corner. What is the MOST reasonable explanation for the unique mark
appearing on all the documents?
O A.
The author spilled coffee on all the documents.
O B.
The documents were deliberately marked by law enforcement officials in order to keep track of them.
O C.
The documents were all photocopied on a machine that had a defect or dirt.
O D. The documents were incorrectly stored and were beginning to degrade.
