Drew, Steven, Jen, and Lina Are College Friends Who Are

Drew, Steven, Jen, and Lina are college friends who are shopping at the local discount store. As they walk through the pharmacy department, they notice an automated blood pressure machine that can be used for free. For fun, they all decide to check their blood pressure. Drew's reading is 122/88 mm Hg, Steven's reading is 138/89 mm Hg, Jen's reading is 110/70 mm Hg, and Lina's reading is 100/60 mm Hg. 
While in the pharmacy section, they also look through the vast array of supplements. Jen is of Asian descent and has a family history of osteoporosis. She is a smoker and has a small skeletal framework. She needs calcium supplements but is not sure what would be an appropriate supplement to prevent osteoporosis.
In the past, Lina was diagnosed with iron-deficiency anemia; she is currently not taking any dietary supplements. She needs iron supplements but is confused about what to buy. Drew and Steven decide to purchase a large bottle of multivitamins to share. Neither Drew nor Steven consumes vegetables or fruits regularly. Hence, taking multivitamin supplements would be good for their health and reduce their risk of hypertension and stroke.
Lina is no longer anemic but would like to avoid becoming so in the future. What should she do?

A) purchase an iron supplement
B) purchase a multivitamin
C) include fortified grain products and meat in her diet
D) exercise regularly
E) reduce her sodium intake to less than 2,300 mg per day