$\text{Lt}_{x \to 0} \left(1 + \frac{3}{x}\right)^{4x} = ?$ Sylhet • 2023 ক (ক) $e^{\frac{4}{3}}$ খ (খ) $e^{12}$ গ (গ) $3e^{12}$ ঘ (ঘ) 1