Which of the following describes the characteristics of a Boot Sector Virus?

Moves the MBR to another location on the RAM and copies itself to the original location of the MBR

Moves the MBR to another location on the hard disk and copies itself to the original location of the MBR

Modifies directory table entries so that directory entries point to the virus code instead of the actual program

Overwrites the original MBR and only executes the new virus code