A technician is tasked with clearing all dust covering the fan vents of servers in a small office.Which of the following tools would be the BEST option?（）

A. Mini PCIe wireless card
B. Heat sink
C. DC jack
D. Li-Ion battery

A. Gaming PC
B. Home theater PC
C. Thick client
D. Thin client

A. Warn the user
B. Report through proper channels
C. Wipe the drive
D. Give the computer back to the user