Can anyone help me with these number 19 and 20. Thank you

You have been told many times by your parents and the news that after "trick or treating" on Halloween your candy needs to be inspected before eating. The fear is that someone will put poison or razor blades in the treats. Some hospitals have even offered their X-ray machines to peer into candy for concerned parents. Research has only confirmed two reports of candy tapering in the history of Halloween (Made to Stick, 2007). The paranoia is an example of what type of decision-making bias. Overconfidence Bias Availability Bias Anchoring Bias Escalation of Commitment Question 20 2 pts Retail store constantly use this decision bias to get you to buy their product. The technique is to show a suggested retail price with their lower store price. Customers are committing what type of bias? Escalation of Commitment Overconfidence Bias Anchoring Bias Availability Bias