The table lists, for three triglycerides and the fatty acids present in them, how many carbon atoms each molecule has and how many carbon-carbon double bonds it contains. This data is written in the form ‘number of carbon atoms : number of carbon-carbon double bonds’। Which description best fits fatty acid 2 in the $56 : 4$ triglyceride, marked as X in the table?
- Asaturated with 17 carbon atoms
- Bsaturated with 18 carbon atoms
- Cunsaturated with 17 carbon atoms
- Dunsaturated with 18 carbon atoms