Your answer will be D attainable because its not C because low expectations probably going to be a low life its not B because if the parents have impossible expectation a probably the person is going to be mad all his life because he never was inspired and when it came down to rather D, or A I choose D because changing if the expectations change the child will get confused which is not good.
Attainable is use for like goals so if your parents give you a lot of goals that have high expectations because they believe in you with other children giving a positive self-esteem would be useful because they will inspired by the comments you are giving them like telling that their doing a good job listen to their problems and try to solve them as best you can the he or she could be happy
During exercise, increases in cardiac stroke volume and heart rate raise cardiac output, which coupled with a transient increase in systemic vascular resistance, elevate mean arterial blood pressure (60). However, long-term exercise can promote a net reduction in blood pressure at rest.