Study the following statements and select the correct option given below:
Statement-$I$: Biodiversity is the variety of features of life observed in the living organisms at different levels within a defined area.
Statement-$II$: Living organisms' attempt to accommodate with different environmental conditions forms the basis of diversity.

• A
  Statement-$I$ is incorrect but Statement-$II$ is correct.
• B
  Statement-$I$ is correct but Statement-$II$ is incorrect.
• C
  Both Statement-$I$ and Statement-$II$ are correct.
• D
  Both Statement-$I$ and Statement-$II$ are incorrect.