According to physical health differences studies,internals tend to be more cautious about their health and are more likely

A) to wear seat belts, exercise, and quit smoking.
B) to take better care of their health in general.
C) to be more at risk for HIV.
D) to have more eating disorders.

If the correlation between children's body weight and their reading ability is -1.00,this would indicate that

A) there is very little statistical relationship between children's body weight and reading ability.
B) low body weight has a negative effect on children's reading ability.
C) among children,better reading ability is associated with lower body weight.
D) body weight has no causal influence on the reading ability of children.