Primary Product of Fatty Acid Beta-Oxidation

During the metabolism of fatty acids, a series of biochemical reactions convert fatty acids into acetyl-CoA, which plays a crucial role in energy production and biosynthesis. These reactions involve various enzymes and intermediates. One of the key products of fatty acid degradation is a molecule that can enter the citric acid cycle. Which biological molecule is primarily produced from the complete beta-oxidation of a saturated fatty acid with an even number of carbon atoms?