Select the option that shows the correct sequence of floral whorls from the outside to the inside of a flower.

• A
  Calyx $\rightarrow$ Corolla $\rightarrow$ Gynoecium $\rightarrow$ Androecium
• B
  Corolla $\rightarrow$ Calyx $\rightarrow$ Androecium $\rightarrow$ Gynoecium
• C
  Calyx $\rightarrow$ Corolla $\rightarrow$ Androecium $\rightarrow$ Gynoecium
• D
  Corolla $\rightarrow$ Calyx $\rightarrow$ Gynoecium $\rightarrow$ Androecium