This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Psychiatry
When information memorized afterward is interfered by the information learned earlier, it is called : 
Select and explain. 
A. Retroactive inhibition, B. Proactive inhibition, C. Simple inhibition, D. Inhibition
B: Proactive inhibition
Answer: B: Proactive inhibition 
Explanation: Earlier learning interferes with retrieval of new information →  proactive interference.
Newly acquired information interferes with the retrieval of previously learnt information → retroactive inhibition.