$P$ - Statement: Humans consume milk as a food item.
$Q$ - Statement: Milk is used to produce curd,butter,cheese,sweets,etc.

• A
  Both statement $P$ and statement $Q$ are correct.
• B
  Both statement $P$ and statement $Q$ are incorrect.
• C
  Statement $P$ is incorrect and statement $Q$ is correct.
• D
  Statement $P$ is correct and statement $Q$ is incorrect.