[单选题]
How much energy wouldrhre af5r ..egd2ju88 b9qr, f df0t,x-zd*w tq:ec/oye released if 2.0 kg of material was lost during a reaction f9o y,tx-eqr0d zf,w/* cqtd:?
A. $1.8 \times 10^{17} \; J$
B. $1.5 \times 10^{16} \; J$
C. $6.0 \times 10^{8} \; J$
D. $4.7 \times 10^{-8} \; J$
