Which of the following is false regarding the role of platelets in hemostatic reactions?

Below are the choices:

a. Platelets do not stick to intact endothelial cells.

b. Platelets adhere to exposed collagen fibers.

c. Platelets release chemicals that attract and bind other platelets.

d. Platelets release the only chemical factors that can initiate coagulation.

the answer is d. Platelets release the only chemical factors that can initiate coagulation.