A Study by Roediger and Karpicke (2006)had Subjects Either Study

A study by Roediger and Karpicke (2006) had subjects either study a prose passage four separate times (the SSSS group) or study the prose passage one time,then take three tests on the material (the STTT group) .The results of this study were that

A) there was no difference between the groups at the immediate memory test,but at the delayed memory test,the SSSS group had better memory.
B) the STTT group had better memory on the immediate memory test,but at the delayed memory test,there was no difference between the groups.
C) when memory was tested almost immediately,the SSSS group had better memory.
D) when memory was tested almost immediately,the STTT group had better memory.