At sea level, the weight of $1 \mathrm{~kg}$ mass in SI units is $9.81 \mathrm{~N}$. The weight of $1 \mathrm{lbm}$ mass in English units is
(a) $1 \mathrm{lbf}$
(b) $9.81 \mathrm{lbf}$
(c) $32.2 \mathrm{lbf}$
(d) $0.1 \mathrm{lbf}$
(e) $0.031 \mathrm{lbf}$