The type of holder(s) used for the bisecting angle technique include:
a. disposable bite block
b. hemostat
c. snap-a-ray
d. all of the above

C.) Snap-a-ray

Explanation:

The bisecting angle technique is used for dental radiography based on the principle of projecting the x-ray beam at the right angle. It is non-intrusive and the patient is awake while it is happening. A hemostat is not necessary since this is a scanning technique and the bite block isn't either since the patient needs to have his or her mouth open.