Which of the following professionals are MOST likely to utilize what is known about proximity in their work?

According to the article Zipping Up the Genes about twins reared apart, the correlations between the

personalities of the monozygotic twins were (a) positive and high (b) negative and moderately high (c) negative and very high (d) effectively zero

A person's body mass index (BMI) is his or her ____

a. ratio of height to weight b. percentage of body fat c. weight as compared to age d. type of body style