What Quantity of Energy Would Be Produced as 2 $\alpha$ Decay to Uranium-234? Round Your Answer to Two Significant Figures

What quantity of energy would be produced as 2.00 kg of plutonium-238 undergoes $\alpha$ decay to uranium-234? Round your answer to two significant figures.

A) 2.4 * 10¹³ J
B) 3.5* 10¹¹ J
C) 6.2* 10^-10 J
D) 1.2 * 10¹³ J
E) 2.7 * 10¹² J