The Intensity of Solar Radiation at the Top of Earth's

The intensity of solar radiation at the top of Earth's atmosphere is 1340 W/m². A person has a projected surface area of 0.8 m². Assume that 5% of the incoming solar energy reaches Earth's surface, and that you absorb 50% of the incident energy. What amount of solar energy do you absorb in 30 minutes?

A) 186 kJ
B) 257 kJ
C) 540 kJ
D) 641 kJ