[单选题]
Particles that do not interact via the strong force but doh07txukh/ eas, wu/e6 intek ;otde7m.d5 bract via the weak nuclear force (and presumably by the much weaker gravitati. ome;dk dtb75on force) are called
A. gauge bosons.
B. leptons.
C. baryons.
D. mesons.
