Which of the following is the best reason that we have trouble remembering the license plate number of a car that we just passed 10 minutes ago?
a) The license plate number was not encoded into long-term memory due to lack of attention.
b) The license plate number was encoded but couldn't be retrieved due to interference from other memories.
c) The license plate number was stored in short-term memory but decayed over time.
d) The license plate number was not encoded due to lack of relevance to personal goals or interests.