Identify the incorrect statements from the following:
$(i)$ Increasing milk production capacity is an objective of animal breeding.
$(ii)$ Breeds of each domesticated animal show variations in their characteristics.
$(iii)$ Out-crossing involves breeding between a male and a female of two different species.
$(iv)$ $A$ mule is an example of interspecific hybridization.

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