The Myers$-$Briggs Type Indicator $($MBTI$)$ is one of the most popular personality assessments. The MBTI

Is based on the concept of four main traits with two opposites $($for example, how one prefers to be energized, motivated or interact with others: introvert or extrovert$).$

Describes people on a continuum whereas a person may have both of two traits $($such as feeling and thinking$)$ but a tendency more towards one than the other.

Reports $16$ different personality types as a combination of four letters with each letter representing a key trait.

All of the above.

None of the above.