Why is pyruvate generated from alanine in the liver important for gluconeogenesis?

• A. Pyruvate is directly converted into ATP, which fuels muscle contraction.
• B. Pyruvate is used to synthesize urea in the liver.
• C. Pyruvate serves as a substrate for gluconeogenesis, producing glucose that is sent back to muscles, continuing the cycle.
• D. Pyruvate is converted into alanine, which is then used for energy production in the liver.

Answer: (C)