The Strong Nuclear Interaction Has a Range of Approximately 0 $\Delta E \Delta t=h / 2$

Multiple Choice

The strong nuclear interaction has a range of approximately 0.70 * 10-15 m.It is thought that an elementary particle is exchanged between the protons and neutrons, leading to an attractive force.Utilise the uncertainty principle to estimate the mass of the elementary particle if it moves at nearly the speed of light. $\Delta E \Delta t=h / 2$

A) 140 MeV/c2, a pion
B) 511 keV/c2, an electron
C) 96 GeV/c2, a Z boson
D) 500 MeV/c2, a K meson
E) 106 MeV/c2, a muon