Select the statements that describe characteristics of genes:
$(i)$ Genes are specific sequences of bases in a $DNA$ molecule.
$(ii)$ $A$ gene does not code for proteins.
$(iii)$ In individuals of a given species,a specific gene is located on a particular chromosome.
$(iv)$ Each chromosome has only one gene.

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