Which of the Following Is True When Using Computed Radiography

Multiple Choice

Which of the following is true when using computed radiography?
1) The IR could be opened for a few minutes without causing the stored image to be destroyed.
2) Collimation of the x-ray beam is not critical.
3) Final contrast and density adjustments of the radiographic image are done using a computer.

A) 1 and 2
B) 1 and 3
C) 2 and 3
D) 1, 2, and 3