Which of the following scenarios would provide the best evidence that human traits are a result of lifestyle
a. tanya's mother has blonde hair. tanya's father has black hair. tanya's hair is brown.
b. arnold's parents and grandparents all have heart disease. although arnold has always exercised, avoided unhealthy foods, and followed doctor's instructions, he also has heart disease
c. lisa and anita are identical twin sisters. lisa went grew up in new york; anita grew up in florida. both sisters used to catch cold easily, but now, lisa does not. both sisters used to sunburn easily, but now, anita does not
d. matt had been naturally right-handed since birth. in high school, he decided to start throwing left-handed after reading that there was a shortage of left-handed pitchers in the major leagues. matt is now left-handed.

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Mr. j, age 42, is a construction worker in las vegas. he recently noticed that a mole on his face seemed to be getting larger and darker. at first he did not worry because he was in the sun a lot and assumed the change may have been caused by sunburn. after a month, not only was the mole larger and darker, but it appeared to be “bumpy.” his doctor diagnosed a malignant melanoma skin cancer following biopsy of the nevus. mr. j reports pain in his right shin that does not go away when he puts his feet up or sleeps. discussion questions 1. relate mr. j’s skin changes to the warning signs for malignant melanoma. (see malignant melanoma.) 2. discuss the normal progression of this malignancy. what is the significance of the bone pain that mr. j is experiencing? (see malignant melanoma.) 3. discuss the treatment available for this patient and the prognosis for recovery. (see malignant melanoma.)