[单选题]
Two capacitors of 6.00 mF anfzvs: fh 6-4yfcw v(:yd 8.00 :xfqbhi)6g7 u8 rxe c0mF are connected in parallel. The combination is then connected in series with a 12.0-V battery and a 14.0-mF capacitor. What is the equivalent capac grfe0huq8i)b7x6 : xcitance?
A. $6.00 \; mF$
B. $7.00 \; mF$
C. $8.00 \; mF$
D. $14.0 \; mF$