Which of the Following Is a True Finding of Shuell's

Which of the following is a true finding of Shuell's research into organisation and memory?

A) Recall is much better when information is presented in an organised way
B) Using categories of information has no effect
C) Organising information is not an effective use of time
D) Random information is remembered as successfully as non-random information
E) Having more knowledge of categories is unhelpful to memory