Why is the Darlington configuration not suitable for more than two transistors?

• A. Because leakage current increases and voltage gain decreases with multiple numbers of transistors
• B. Because leakage current decreases and voltage gain increases with multiple numbers of transistors
• C. Because leakage current as well as voltage gain increases with multiple numbers of transistors
• D. Because leakage current as well as voltage gain decreases with multiple numbers of transistors