Which of the following is true regarding the Genetic Information Nondiscrimination Act of $2008?$

Employers can purchase employees' or applicants' genetic information from third parties

Employers cannot request employees' or applicants' genetic information, but inadvertently obtaining it is not penalized

Employers can request employees' or applicants' genetic information if it is necessary for the job

Employers can request employees' or applicants' genetic information under any circumstance