Using a Carestream Digital Imaging System,if an Image's EI Number

Multiple Choice

Using a Carestream digital imaging system,if an image's EI number is 1800 while the optimal range ends at 1200,this means that the IR was ______________ and the exposure to the IR needs to be ___________________.

A) underexposed; doubled
B) underexposed; increased by a factor of four
C) overexposed; halved
D) overexposed; reduced by a factor of four