The correct option is C Phospholipid
Phospholipids have a polar head group and two hydrophobic tails that are made of hydrocarbons. Phospholipids are the most abundant in the cell membrane. They form the bi-layered membrane structure. In addition to phospholipids, the plasma membrane contains some amount of cholesterol and glycolipids. Sphingolipid is a type of phospholipid that is present in the cell membrane. So, the correct answer is 'Phospholipid'.