What are the other names for monoclinic sulfur and rhombic sulfur?

• A
  Monoclinic sulfur is $\alpha$-sulfur and rhombic sulfur is $\beta$-sulfur.
• B
  Monoclinic sulfur is $\beta$-sulfur and rhombic sulfur is $\alpha$-sulfur.
• C
  Both are known as $\alpha$-sulfur.
• D
  Both are known as $\beta$-sulfur.