Intervening material is most likely to cause an increase in forgetting when the intervening material is very similar to the information that is to be remembered.What is this called

A)  motivated forgetting
B)  retrieval failure 
C)  ineffective encoding
D)  interference

Intervening material that is similar to the information to be remembered causes interference in memory, leading to an increase in forgetting. This phenomenon is known as interference. Motivated forgetting refers to a deliberate attempt to forget information. Retrieval failure occurs when memory retrieval is unsuccessful due to insufficient encoding or cues. Ineffective encoding refers to inadequate initial processing of information, which leads to poor retention.