Answer:
Proactive interference.
Explanation:
Interference may be defined as the explanation to forget the things in the long term memory. Two main types of interference are retroactive interference and proactive interference.
The proactive interference occurs when the individual is not able to the learn the new memory because of the old task has been learnt. The memories that need to be learnt and that forgets are quite similar with each other. Students might feel the proactive interference when they learn the similar subjects.
Thus, the correct answer is option (E).