What is the correct sequence of steps to remove the heatsink on an HP Compaq dc5000 business
desktop?

A.
Disconnect heatsink fan cable; lift retaining lever; then remove retaining clips.

B.
Disconnect heatsink fan cable; remove retaining clips; then lift retaining lever.

C.
Lift retaining lever; disconnect heatsink fan cable; then remove retaining clips.

D.
Lift retaining lever; remove retaining clips; then disconnect heatsink fan cable.

Explanation: