Mineral oils (e.g. petroleum oils) are preferred over fatty oils (e.g. mustard oil, ghee, tallow, palm oil, olive oil etc.) as a lubricant due to its

• A. poor oxidation stability and high gum forming tendency.
• B. greater tendency of decomposition at elevated temperature.
• C. hydrolysis tendency in presence of water.
• D. all (a), (b) and (c).