An athlete burns 400 kilocalories (kcal)400 \text{ kilocalories (kcal)}400 kilocalories (kcal) during a workout. Given 1 kcal=4.184 kJ1 \text{ kcal} = 4.184 \text{ kJ}1 kcal=4.184 kJ, what is the energy in MegaJoules (MJ)\text{MegaJoules (MJ)}MegaJoules (MJ)?
1.67 MJ
16.7 MJ
0.167 MJ
1673.6 MJ