Which of the Following Is Probably the MOST Plausible Explanation

Which of the following is probably the MOST plausible explanation of source misattribution?

A) Even initially, we fail to encode the source of the information we learn.
B) Long-term memory is more likely to code the meaning than the source of the information we learn.
C) We don't have the working memory capacity to process not only the information we learn, but also its source.
D) Memory for the source of the information we learn decays more quickly memory than does the information itself.