Answer:
Time of consumption.
Explanation:
When evaluating the most effective communication method for a message, a manager wants to use a method that affords the receiver the most control over when the message is dealt with. This is referred to as time of consumption.
Time of consumption is referred to the time of receiving the message. As per the case given, manager is looking for communication method which is effective as in receiver should have most control on the message, when it is received or dealt with. When message is received, it should be ligible, ease of replying, trackable, short and should be relevant, which make it most effective communication.
