During anaerobic respiration in yeast,

• A
  Water and $CO_2$ are end products
• B
  $CO_2$,$C_2H_5OH$ and energy are end products
• C
  $H_2S$,$C_6H_{12}O_6$ and energy are the end products
• D
  $H_2O$,$CO_2$ and energy are the only end products