[单选题]
An X-ray technician takes an7 yxz,npfv910z x;/5k(m gr mpmtlod(8dg -u /tdqgsidip. 2( average of ten X-rays per day and receives 2.5 mrad per X-ray. What is the total dose the technician8( dq/2gtud p.-si dig receives in 250 working days?
A. $2.50 \; rem$
B. $5.00 \; rem$
C. $6.25 \; rem$
D. $7.75 \; rem$
