Which one of the following is the pair of equivalent circuits?
$i. (p \land q) \lor (p \land r)$
$ii. p \lor (q \land r)$
$iii. p \land (q \lor r)$
$iv. p \land q \land r$
$v. (p \land q) \lor r$

• A
  $(i)$ and $(ii)$
• B
  $(ii)$ and $(iv)$
• C
  $(iii)$ and $(v)$
• D
  $(i)$ and $(iii)$