Components of Food

Read the following statements about diseases.
(i) They are caused by germs.
(ii) They are caused due to lack of nutrients in our diet.
(iii) They can be passed on to another person through
contact.
(iv) They can be prevented by taking a balanced diet.
Which pair of statements best describe a deficiency disease?
(a) (i) and (ii) (b) (ii) and (iii)
(c) (ii) and (iv) (d) (i) and (iii)