A lift of mass 1600 kg is supported by thick iron wire. If the maximum stress which the wire can withstand is $$4 \times 10^8$$ N/m$$^2$$ and its radius is 4 mm, then maximum acceleration the lift can take is _______ m/s$$^2$$.
(take g = 10 m/s$$^2$$ and $$\pi$$ = 3.14)

A

2.56

B

3.89

C

4.32

D

5.16