The halo effect is the tendency to believe that physically attractive people have a host of other positive qualities, such as a high level of intelligence or a good personality. When asked to guess what the halo effect is before learning about it, many mistakenly assume that the reverse is true (that attractive people are seen as less smart or less kind). Once they learn about the effect, however, many say that it is no surprise and that they knew it all along. This reflects

the hindsight bias.

Explanation:

From the question we are informed about The halo effect which is the tendency to believe that physically attractive people have a host of other positive qualities, such as a high level of intelligence or a good personality. When asked to guess what the halo effect is before learning about it, many mistakenly assume that the reverse is true (that attractive people are seen as less smart or less kind). Once they learn about the effect, however, many say that it is no surprise and that they knew it all along. In this case, This reflects the hindsight bias.

Halo effect can be regarded as tendency of individual to have positive impressions about a person or company as well as brand or product as regards a particular area so that this can positively influence one's opinion and feelings as regards areas. It is a term that define phenomenon in which particular evaluators could be influenced as a result of their previous judgments of performance as well as personality

Hindsight bias on other hand can be regarded as a psychological phenomenon which gives room to people to be able to convince themselves after the occurrence of an event which was been accurately predicted by them before it happened. And this usually give people conclusion that it is possible to predict other events accurately.

i don't know the answer to this

the answer is either c or d i think its d