2.The authorities in the district of Oakdale want to know how satisfied the citizens are with the new public swimming pool. It is decided to carry out a survey. What would be the group of people to be sampled? a)All inhabitants of Oakdale. b)All adult inhabitants of Oakdale. c)All inhabitants of Oakdale who have visited the swimming pool in a specific week. d)All inhabitants of Oakdale who have an annual season ticket.