A ball of mass $0.10\mathrm{kg}$ moves at $10\mathrm{m}{\mathrm{s}}^{-1}$. Taking $h=6.626\times 10^{-34}\mathrm{J}\mathrm{s}$, its de Broglie wavelength is closest to

1. A$6.6\times 10^{-34}\mathrm{m}$
2. B$6.6\times 10^{-38}\mathrm{m}$
3. C$6.6\times 10^{-24}\mathrm{m}$
4. D$6.6\times 10^{-30}\mathrm{m}$