Answer:
Proactive interference
Step-by-step explanation:
Proactive interference: In psychology, the term "proactive interference" is described as the "interference effect" of formerly learned materials or things on the retrieval & acquisition of newer thing or materials. In other words, proactive interference tends to occur when previous learning interferes with entirely new learning.
Example: A boy finds it difficult to remember his friend's new mobile number after having formerly learned the old mobile number.
In the question above, the given statement is an example of proactive interference.