Answer:
(b,c) proactive interference
Explanation:
The term 'Interference' refers to the forgetting that occurs in long-term memory.
Proactive interference: Proactive interference is defined as the phenomenon in which old information works as a hindrance in recalling the new information. Also, this phenomenon consists of reverse interference as compared to retroactive interference.
Example: Proactive interference occurs while remembering the telephone number.
Hence, Janica is facing difficulty because of proactive interference.