Assertion $(A)$: The nomenclature of organisms should be done in the Latin language.
Reason $(R)$: In nomenclature,the first name should be the species and the second name should be the genus.

• A
  $A$ and $R$ are both true,and $R$ is the correct explanation of $A$.
• B
  $A$ and $R$ are both true,but $R$ is not the correct explanation of $A$.
• C
  $A$ is true and $R$ is false.
• D
  $A$ is false and $R$ is true.