When Damien, the sales manager, is deciding on who will train the new sales trainee, he tries not to look at just the recent sales numbers but also checks past sales reports to determine who is the most productive salesperson. By using this method he is not affected by the bias.

B) Availability.

Explanation:

Availability Bias refers to the way of thinking, which suggests that some people while making decisions see the information from the surface only and doesn't go in the deep to understand the information, which creates the element of bias in their decision.

Take example of Damien, if he only looked at the recent report he would have thought that sales person A is the best, because he did good in previous month, but he also observed the past reports which helped him in making this critical decision.

B) availability

Explanation:

In business, availability bias basically refers to the tendency to look only at the most recent information in order to establish a trend. Generally specific events that a person has experienced personally tend to be fixed in their memory and they serve as a reference towards related past events.

E.g. Damien is looking for a salesperson that is efficient and also capable of training a new salesperson. In order to make a better a better he starts to review older sales reports because if he trusts his memory, he will probably remember the sales numbers for the past month or two only. This way, he is avoiding availability bias since his memory will record only the last events.

the third answer is correct.