Possibly D, there really isn't enough context to give a clear answer.
EDIT: Yes, The answer is d
It is soprano they are high notes
Answer: uses a heat activated.... the answer is dry mount
Use triangular pockets to hold the corners....the answer is photo corners
Use different patterns of tape.....hinge mount
Uses wet glue to stick the print....wet mount
Explanation: I got this right on a post test
The task manager
The task manager is a component found in almost all versions of windows operating systems. It enables a user to view tasks currently running and the overall performance of the computer. It helps the end users and admins to monitor, manage and troubleshoot tasks. You can easily open the task manager by pressing the Ctrl+Alt+Del key combination.
A hope this is correct just read an article on it