Describe how unemployment rate vary by: gender, age, race and formal educational attainment.
a) Unemployment rates are consistent across all demographic groups.
b) Unemployment rates tend to be higher for younger individuals and lower for older individuals.
c) Unemployment rates vary significantly based on gender, age, race, and educational attainment.
d) Unemployment rates are primarily influenced by age and educational attainment, with minimal variation by gender and race.