Long-term storage a. uses working memory to help maintain information. b. uses dual coding for better encoding. c. involves primarily acoustic encoding. d. stores information for a limited amount of time.

b. uses dual coding for better encoding.

Explanation:

Long-term memory has a limitless store, and we can define working memory as such short-term memory and for that is not the option a, in addition, is not the option d, because mention limit store, in this case, both memories use dual coding but the long-term use a bigger memory than the short-term where this memory uses little memory for encoding.