Two tangent galvonometers A and B are identical except in their number of truns. They are connected in series. On possing a current through them, deflectors of `60^@` and `30^@` are produced. The ratio of the number of turns in A and B is

Options

A. `2:1`
B. `1:2`
C. `3:1`
D. `1:3`

Answer

C