A glycoprotein found in the cell surface membrane of human cells is known as ICAM-1. ICAM-1 functions as a cell adhesion molecule, and the common cold virus also uses it to bind to human cells. Which statements about ICAM-1 are true?
- A1, 2 and 3
- B1 and 2 only
- C1 and 3 only
- D2 and 3 only