Which of the following statements is true about a G-protein coupled receptor?

Which of the following statements is true about a G-protein coupled receptor?

a) It contains five transmembrane hydrophobic sections.

b) There are more extracellular loops than intracellular loops.

c) The binding region for the G-protein involves two extracellular loops.

d) The N-terminal chain is extracellular and the C-terminal chain is intracellular.