Which lipoprotein has highest concentration of cholesterol.. LDL

Which lipoprotein has highest concentration of cholesterol?
a. VLDL
b. LDL
c. IDL
d. HDL

(b) VLDL are the TG rich lipoproteins
HDL has 20% cholesterol.
IDL has cholesterol and TG in equal amounts.
LDL is the richest lipoprotein in cholesterol esters.