Question: The rest mass of a particle with total energy 5.0 GeV and momentum 4.9 GeV/c is approximately
A: 0.1 GeV/c^2
B: 0.2 GeV/c^2
C: 0.5 GeV/c^2
D: 1.0 GeV/c^2
Please eliminate two incorrect options first, then think it step by step and choose the most proper one option.