Participants Are Asked to Listen to a Tape-Recorded Message and to Shadow

Participants are asked to listen to a tape-recorded message and to shadow the message as they hear it. Which of the following tasks will be easiest to combine with this shadowing task?

A) viewing a series of printed words, followed by a test measuring memory for the words
B) hearing a simultaneous tape-recorded message, followed by a test measuring memory for the gist of the second message
C) hearing a simultaneous tape-recorded list of words, followed by a test measuring memory for the word list
D) viewing a series of pictures, followed by a test measuring memory for the pictures