Explanation:

- Patripotestal families are centered around the authority of the father within the family structure. Matripotestal families emphasize the authority of the mother.

- Option 1: Residence

- Refers to where couples decide to live after marriage (e.g., matrilocal or patrilocal).

- Option 2: Descent

- Involves tracing family lineage, either through the mother's line (matrilineal) or the father's line (patrilineal).

- Option 3: Authority

- Concerns who holds power and decision-making capabilities in the family.

- Patripotestal and matripotestal families are primarily based on authority figures.

- Option 4: Blood

- Relates to biological relationships within the family.