radiographer use monitoring devices to record their monthly exposure to radiation the type of devices suited for this purpose include

radiographer use monitoring devices to record their monthly exposure to radiation the type of devices suited for this purpose include the:
1. pocket dosimeter
2. thermoluminescent dosimeter( TLD)
3- optically stimulated luminescence dosimeter (OSL)
a. 1 and 2 only
b. 1 and 3 only
c. 2 and 3 only
d. 1,2 and 3