What is it called when someone spends a lot of time telling him or herself how important he is?

If a study randomly selected 100 participants from a global pool, where would the majority of participants come from?

a. A developing country b. A developed country c. A declining country d. It could not be determined.

People with antisocial personality disorder ____

a. hardly ever lie b. exhibit better-than-average perceptions about other people c. are often loyal to their employers over many years d. have a low susceptibility to fear and anxiety