A5 (2 marks) A bank has a credit policy that it will only approve new home loans to borrowers if their debt repayments do not exceed 30% of their income. The ratio is based on experience and is used to guide new loan decisions. The lending rule is an example of which of the following behavioural biases? Select one: O a. Anchoring bias. O b. Rule of thumb. O c. Framing effect. O d. Calibration bias