What is the value of $\lim _{x \rightarrow \infty}\left(\frac{x+6}{x+1}\right)^{x+4}$ ?

• A

  $e$
• B

  $e^2$
• Correct answer
  C

  $e^4$
• D

  $e^5$

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