When Lonnie and Burt were married, their friends were unsure of whether the marriage would last or end in divorce. However, after the two divorced, many of their friends commented to each other about how certain they had been that things would not work out from the beginning. This is an example of the ?

Hindsight bias

Explanation:

Hindsight bias  is the bias in which people tend to over-emphasize their ability of prediction about any situations outcome that could not have easily been predicted. They tend to show that they knew about the outcome all along

According to the question ,hindsight bias  is shown through case where friends were unsure that marriage of Loonie and Burt would last and when they actually got divorced, friends were overestimating their skill that this outcome prediction from the beginning.

answer; /// i believe that the correct answer is (a) making presentations;