What is the purpose of the Cs secretText parameter used in the prepareha and crthagrp commands on MQ Appliance?

What is the purpose of the Cs secretText parameter used in the prepareha and crthagrp commands on MQ Appliance?
A . To be used as the unique key for the appliances.
B . To be used to decide. In secret, which appliance will be the preferred appliance.
C . To generate a short-lived password used to create two keys, one for each appliance.
D . To generate a short-lived password used to set up on unique key for the appliances.

Answer: A