2. (30 marks) A generational GA has a population size of 100, uses fitnes:s proportional selection without elitism, and after t generations has a mean population fitness of 76.0. There is one copy of the current best member, which has fitness 157.0 A) What is the expectation for the number of copies of the best individual present in the mating pool? B) What is the probability that there will be no copies of that individual in the mating pool, if selection is implemented using the roulette wheel algorithm? C) What is the probability if the implementation uses stochastic universal sampling