How much energy has your body used in joules if your health device indicates that 450 calories were burned during your workout? How many calories are in a dinner containing 3.5*10^6 joules?
A. 1885 J, 837.1 cal
B. 1885 J, 450 cal
C. 1.8810^3 J, 837.1 cal
D. 1.8810^3 J, 450 cal