What Is the Explanation for the Phonological Similarity Effect, Assuming

What is the explanation for the phonological similarity effect, assuming a phonological loop like that described by Baddeley's model?

A) People can hold more pieces of information in working memory when they sound similar.
B) Similar items in the phonological store become confused.
C) Long-term memory can assist performance when there are rhymes.
D) There is no such effect.