A wire $$ab$$ of length 10 cm is fixed in the shape of a sinusoidal curve as shown. The wire carries a current of 1.2 A. In a uniform magnetic field $$\vec{B}$$ of 0.1 T, the wire experiences a force whose magnitude is

A

$$1.2 \times 10^{-2}$$ N.

B

$$4.8 \times 10^{-3}$$ N.

C

zero.

D

insufficient data.