Underwood's Case Study of Moray Showed That

Underwood's case study of Moray showed that:

A) the task of shadowing is difficult enough that it requires continuous directed attention,even with much practice.
B) only relatively simple tasks ever become truly automatic.
C) even the difficult task of shadowing can become automated enough to allow resources for monitoring the unattended channel.
D) Moray's ability to report details from the unattended channel depended largely on the physical characteristics of the stimulus.