The dimension of extroversion includes the characteristic of a. dominance b. dependability c. security d. agreeableness

The dimension of extroversion includes the characteristic of Dominance.

Explanation:

Extroversion describes an outgoing nature of an individual. Extroverts lean towards being verbally and physically active. There is always an air of dominance and tend to be assertive amongst groups. Extroverts can be identified with their adventurous nature and talkativeness.

Their levels of comfort are very high when they are amidst social gatherings. The extroverts are guided by their impulsivity and reduced social inhibitions. They highly enjoy their interactions with other people and are outward frank.

I believe you mean a member of the House of representatives: these are elected for a number of two years.- but in practice the members can be re-elected and there is no limit on how many times they can be re-elected.