How Would You Determine Whether Alternative Male Reproductive Tactics Coexist

How would you determine whether alternative male reproductive tactics coexist in a population in an ESS?

A) Compare the fitness of each tactic in the population.
B) Quantify the frequency of each tactic in the population.
C) Determine whether individuals use one or more tactics each year.
D) Quantify the number of tactics used by an individual over its lifetime.
E) Compare the tactics used by close relatives.