Final answer:
A Z-score of +0.2 indicates that Robin's bone health is similar to others her age.
Step-by-step explanation:
A Z-score of +0.2 indicates that Robin's bone health is similar to others her age. A Z-score is a measure of how many standard deviations a data point is from the mean. A positive Z-score means the data point is above the mean, but since the Z-score is only +0.2, it is still relatively close to the mean. Therefore, option D) She has bone health similar to others her age is the correct answer.