Which of the following statements accurately reflects the morbidity and mortality statistics for Native American Indians in the U.S.?

a. Native American Indians have lower morbidity and mortality rates compared to the general population.
b. Native American Indians have higher rates of morbidity and mortality compared to the general population, with disparities in health outcomes.
c. Morbidity and mortality rates for Native American Indians are similar to those of other ethnic groups in the U.S.
d. There is insufficient data available to assess the morbidity and mortality statistics for Native American Indians accurately.