• AThe major components of biodiesel are triglycerides
• Biodiesel is essentially a mixture of ethyl esters
• CBiodiesel is highly aromatic
• DBiodiesel has a very low aniline point

Biodiesel is produced by transesterifying triglycerides (vegetable oils/fats) with an alcohol, converting them into a mixture of alkyl esters of long-chain fatty acids (methyl or ethyl esters, depending on the alcohol used) — not the triglycerides themselves. Biodiesel is predominantly aliphatic, not aromatic, and has a relatively high aniline point (a measure of paraffinic/aliphatic character).