An MRI technician moves her hand from a region with no magnetic field 5 pts into an MRI scanner's 2.00T field with her fingers pointing in the direction of the field (see the extremely rough sketch). What is the reason for the technician's hand movement?

A) To avoid the magnetic field
B) To measure the strength of the magnetic field
C) To test the direction of the magnetic field
D) To experience the effects of the magnetic field