Which of the following statements are false?
$I.$ $A$ dominant allele determines the phenotype when paired with a recessive allele.
$II.$ $A$ recessive allele is weaker than a dominant allele.
$III.$ $A$ recessive allele does not show its effects when paired with a dominant allele.
$IV.$ $A$ dominant allele is always better for an organism.

• A
  $II, I$ and $IV$
• B
  $II, III$ and $IV$
• C
  $I, II$ and $III$
• D
  $I, III$ and $IV$