According to Atkinson and Shiffrin's Classic Theory

According to Atkinson and Shiffrin's classic theory,

A) short-term memory and long-term memory are distinctly different processes.
B) items stored in short-term memory are fairly permanent.
C) rehearsal is necessary in order to move material from sensory memory to short-term memory.
D) there are no strict limits in the capacity of short-term memory.