Which statement regarding the notion of population in quantitative research is correct? a. The totality of persons, events, organisational units, case records or other sampling units with which the research problem is concerned. b. Method of randomly drawing a portion, or sample, of a population so that each member of the population has an equal chance of being selected. c. Refers to individuals who possess specific characteristics. d. None of the options are applicable e. When generalising from the sample to the larger population, meaning that the sample should have approximately the same distribution of characteristics as the population from which it is selected