A Main Reason Rehearsal Does Not Work Well for Retaining

Multiple Choice

A main reason rehearsal does not work well for retaining information over the long term is that rehearsal often

A) requires that the brain encode information into the working memory.
B) involves chunking of sensory information.
C) requires more use of iconic memory than echoic memory.
D) involves just mechanically repeating information,without imparting meaning to it.