Write the next sentence in this paragraph:

How to remove malware
Understand that viruses, trojans, worms, spyware and bots are all malware that can damage your system.
A trojan is software that may look legitimate, but tricks you into downloading it. It then activates, and can delete files and steal data or give the perpetrator access to your system.

Options:
a). An administrator is a person with whom you can password protect your database. A trojan is a type of perpetrator that can use your database, copy and resize, hack into users' databases and earn your trademark.
b). Verify that your computer has a dedicated shutoff defroster. In theory, you would press the power key to turn it on and off while running the software program.
c). Helix can easily catch this software, so make sure you are safe. Find the error button and quickly click on it in the settings section.
d). A rootkit can be downloaded unknowingly along with other programs that you install. It can hide on your computer and can avoid normal means of detection.
d).