Statement I : Amoeba is a unicellular organism and the single cell performs all functions of a living organism. Statement II : Cell is the fundamental unit of living organism.

• A

  Both the statements are individually true and Statement II is the correct explanation of Statement I
• Correct answer
  B

  Both the statements are individually true but Statement II is not the correct explanation of Statement I
• C

  Statement I is true but Statement II is false
• D

  Statement I is false but Statement II is true

Hence, the correct answer is option: 'B'.