Carbon-11 Decays by Positron Emission

Carbon-11 decays by positron emission.The decay occurs with a release of 2.87 × 10¹¹ J per mole of carbon-11.What mass (g) is converted to energy when 5.00 g of undergoes this radioactive decay?

A) 1.45 × 10^-6
B) 4.35 × 10⁵
C) 6.90 × 10²
D) 1.45 × 10^-3
E) 1.59 × 10^-2