Pretty sure its either a or b
Answer: Homogamy
Homogamy is a term used in sociology to describe the tendency for sexually partnered couples to resemble each other, in some culturally important way. It can be based on status, class, gender, ethnicity, or religion, or age. It is a form of assortative mating.
A mayor is the president of a town or city. not all towns have a mayor. a vice president is like the underdog of the president and usually helps do all of the work. I have no idea what a governed governer is tho.