单选题 Questions 14-16
Choose the correct letter, A, B, C or D.
Write the correct letter in boxes 14-16 on your answer sheet.

单选题 The writer does not recommend multivitamin supplementation for
A．pregnant women.
B．young children.
C．anyone prone to eye problems.
D．old people.

单选题 According to the writer, Vitamin E has been shown to
A．lead to heart problems.
B．be good for heart health.
C．support the immune system.
D．have no effect.

单选题 The Medical Letter group believes antioxidant supplementation
A．is ineffective in attacking free radicals.
B．alerts the immune system to the presence of free radicals.
C．attacks both free radicals and the immune system.
D．prevents the immune system from responding to free radicals.