Which of the following statements best describes the difference between a health maintenance organization (hmo) and a preferred provider organization (ppo)? a. an hmo is paid a monthly premium for ongoing services while a ppo collects no money until after services are rendered. b. an hmo allows the insured individual to choose from a list of providers while a ppo assigns the insured individual the provider nearest his or her residence. c. an hmo requires the insured individual to go to a provider within their organization while a ppo allows the insured individual the option to receive care from a non-preferred provider at a higher cost. d. an hmo is usually paid for by the insured individual’s employer while a ppo usually requires the insured individual to pay a co-pay or deductible for services.