Mr Wagner Stands in Front of the Class Explaining the Process

Multiple Choice

Mr. Wagner stands in front of the class explaining the process of evolution. Ellen is sitting in the front row,but her mind is on the argument she had with her best friend just before class. Based on this information,how far in Ellen's memory system did Mr. Wagner's lecture get?

A) It reached the sensory register.
B) It reached working memory.
C) It reached long-term memory.
D) It never got into the memory system at all.