Which description best explains gluconeogenesis and its consequence during prolonged low carbohydrate intake?

Gluconeogenesis refers to the conversion of fat to glucose directly in adipose tissue and therefore spares amino acids entirely during fasting.

Gluconeogenesis is the synthesis of glucose from non-carbohydrate precursors (e.g., amino acids); during carb scarcity it increases, diverting amino acids from functional proteins toward glucose production, reducing protein availability.

Gluconeogenesis is the direct storage of carbohydrates as glycogen in muscle, which increases during low carb intake to preserve protein structure.

Gluconeogenesis is a digestive process in the stomach that converts fiber into glucose, so dietary fiber prevents any loss of body protein during carb restriction.