What is daemontools pakage in qmail?

Daemon-tools package is a group of tools which are present for the observation of the UNIX  service in qmail. The services and saving of the error messages to logs are monitored by these tools. It helps in simplification of the management and makes the process easy.It has data or information of the errors which occur when setting up or execution of daemon-tools on a particular system.

answer; i do believe its (d) modem;

1. b

2. c

3. b

4. a

5. b