The coils made of same material in two moving coil galvanometer have their area in the ratio of `2:3` and number of turns in the ratio `4:5` . These two coils carry the same current and are situated in the same field. The deflections produced by these two coils willl be in the ratio of
A. `8:15`
B. `15:8`
C. `8:1`
D. `1:4`
