The family containing mustard,and its main characters are:

• A
  Brassicaceae - Tetramerous flowers,six stamens,bicarpellary gynoecium,siliqua type fruit.
• B
  Brassicaceae - Pentamerous flowers,many stamens,pentacarpellary gynoecium,capsule type fruit.
• C
  Solanaceae - Pentamerous flowers,five stamens,bicarpellary gynoecium,berry type fruit.
• D
  Poaceae - Trimerous flowers,three stamens,monocarpellary gynoecium,caryopsis type of fruit.