D.the sum effect of one's actions during life
Answer:
signal detection theory.
Explanation:
Based on the information provided within the question it can be said that this scenario is best explained by signal detection theory. This theory refers to the difference between being able to detect information in information bearing patterns as opposed to random patterns that distract from the information at hand. Which is what happened in this scenario since the TSA officer is constantly checking bags for contraband but rarely checks for hidden contraband.
I think it would be coupon, comparative shopping, and mail-in rebate
hope this helps
