Answer:
1. proactive; retroactive interference
Explanation:
The interference of memory occurs when it combines or distort with another memory/info (whether old or new) making one forget information because of this confusion.
Proactive interference is when old memories muddle with the new one making remembering difficult. As for the Retroactive interference it's the opposite; occurs when we forget an old task/memory due to learning a new one.
This change in price means that there is a shortage of lettuce and the price of tacos will increase. That if tacos are made with lettuce and everything else remains constant (ceteris paribus).
I would think its the curves demand
