A phosphoglycerideis always madeupof:

a saturated or unsaturated fatty acid esterified to a phosphate group whichis also attached to a glycero] molecule

only a saturated fatty acid esterified to a glycerol molecule to which a phosphate group is also attached

only an unsaturated fatty acid esterified to a glycerol molecule to which a phosphate groupis also attached

a saturated or unsaturated fatty acidesterified to a glycerol molecule to which a phosphate group is also attached