Which of the Following Findings Were Reported in the Black

Which of the following findings were reported in the Black Report:

A) Individuals from the lowest occupational groupings in Britain were two and half times more likely to die before retirement than those from the highest occupational groupings.
B) Women's mortality rates were nearly double of that of men.
C) There were no differences in morbidity rates across gender or occupational groupings.
D) There were measurement artifacts that influenced the findings of the report.