[单选题]
A spring is characterized by amd+ tyl( 8pm *s7a1ppf spring consta+th5 pah(vqf;q28-pf netw.d nt of 60 N/m. How much potential energy does it store, when s 2wf q nqp+ -thp(5ea.fvt8;dhtretched by 1.0 cm?
A. $3.0 \times 10^{-3} \; J$
B. $0.30 \; J$
C. $60 \; J$
D. $600 \; J$
