Suppose you try to buy fresh raspberries every day, but your grocery store has them on some days and not others. Which schedule of reinforcement is this?

Variable

Explanation:

Variable schedule of reinforcement occurs when it becomes unpredictable to ascertain a response from the reinforcer (in this case the grocery store). Cassandra would need to keep checking to ascertain when the raspberries would be available.

Variable

Explanation:

Variable schedule of reinforcement occurs when it becomes unpredictable to ascertain a response from the reinforcer (in this case the grocery store). Cassandra would need to keep checking to ascertain when the raspberries would be available.

to plan an idea out before

answer; the automatic system because it is a "gut reactor"