Statement $P$: Heterotrophic mushrooms are cultivated globally.
Statement $Q$: $A$ cow weighing $250 \, kg$ produces $200 \, g$ of protein per day.

• A
  Both statements $P$ and $Q$ are correct.
• B
  Both statements $P$ and $Q$ are incorrect.
• C
  Statement $P$ is incorrect,statement $Q$ is correct.
• D
  Statement $P$ is correct,statement $Q$ is incorrect.