The Research Has Demonstrated a Clear Relationship Between Social Class

The research has demonstrated a clear relationship between social class and health:

A) those of lower social class have better health than those of higher social class
B) those of higher social class have poorer health than those of lower social class
C) those of higher social class have better health than those of lower social class
D) social class and health are related but the relationship is unclear
E) social class and health are unrelated