Read the following statements.
(i) The adjacent nucleotides in a nucleic acid are linked by phosphodiester bonds.
(ii) Thiamine and uracil are not found in DNA.
(iii) B-DNA has left-handed helical structure with 10 base pairs per turn.
(iv) Pyrimidines are double-ring structures with four nitrogen atoms.
     Which of the above statements are correct ?

• A

  (i) and (ii)

• B

  (ii) and (iii)

• C

  (iii) and (iv)

• D

  (i) and (iv)