Final answer:
To improve PMS symptoms, calcium, magnesium, and vitamin B6 might be recommended, making the correct answer 'All of the above'.
Step-by-step explanation:
The dietary supplements that might be recommended to improve PMS symptoms are calcium, magnesium, and vitamin B6. Therefore, the correct answer is (D) All of the above. Calcium is necessary for bone strength, neutralizing acidity, and nerve functions. Magnesium plays a key role in strong bones, maintaining pH balance, and the process of ATP. Vitamin B6 is also suggested to help with PMS symptoms by aiding in the synthesis of neurotransmitters and metabolic functions. These supplements can support the body's homeostasis, potentially mitigating PMS symptoms.