Which of the following code blocks reports persons encountering health services in circumstances related to reproduction?

Most ABO antibodies are

a. IgA b. IgE c. IgG d. IgM

Certain radiographic landmarks may or may not be recorded on intraoral dental radiographs because of all of the following except one. Which one is the exception?

A) Image receptor placement B) Patient positioning C) Angle of the x-ray beam D) Type of image receptor used