Final answer:
Implicit memories are long-term memories that are not part of our consciousness and can be activated by priming, while explicit memories are consciously recalled memories that can be activated by a recognizable stimulus.
Step-by-step explanation:
Implicit memories are long-term memories that are not part of our consciousness. They are like a program running in the background and influence our behavior without us being aware of it. Priming is a process that can activate implicit memory. For example, if you have been exposed to the word 'yellow' multiple times, and then someone asks you to name a fruit, you are more likely to say 'banana' because of the priming effect. On the other hand, explicit memories are consciously recalled memories. They are memories that you actively try to remember and can put into words. For example, if you study for a chemistry exam and then recall the information during the exam, it is an explicit memory.
Therefore, based on the information provided, a psychologist would say that implicit memories can be activated by priming, while explicit memories can be activated by a recognizable stimulus. So the correct answer to the question is:
a) Retrieved