Suppose a study is done to adolescents to determine if their self-esteem (Y) depends on their height (X; in inches). 
 The regression analysis shows that the best fit line is Y = - 8 + 0.5X. This shows that as the adolescent's height increases by two inches,   choose the letter of the correct answer.   a self-esteem score increases by 1 point.   b self-esteem score increases by 0.5 point.   c self-esteem score decreases by 0.5 point.   d self-esteem score increases by 1.5 point

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