[单选题]
The apparent brightne.j(n q3no)t4x 4k u(wlen0kxg; yfg)mss of a star iamhnc9 5qd43rg(u 20iu ggx 5ks $1.0 \times 10^{-12} \; W/m^{2}$ and the peak wavelength is 600 nm. Estimate its distance from us.
A. $0.90 \; pc$
B. $9.0 \; pc$
C. $90 \; pc$
D. $900 \; pc$
