Owen has trouble remembering a friend's new phone number; he keeps recalling the old number instead. Completing a rental application, Pippa finds she cannot recall one of her previous addresses, as she's had several addresses since. Owen is experiencing interference. Pippa is experiencing interference

The correct words for the blank spaces are: proactive; retroactive.

Explanation:

In psychology, proactive interference refers to the process in which old information interferes in the learning of new information. What was learned impedes learning something new. On the other hand, retroactive learning refers to the scenario in which something learned cannot be remembered because of a new input recently learned.  

The ideas are based on the belief that interferences arise due to disruption in the long-term memory.

lives by a moral and ethical code

answer; at prices that violate government price regulations;