[单选题]
Particles that do nog5 (khw7a1sxe j ab:/ft interact via the strong force but do intenw4ui1*2oll5 d4xm lxat w46qract via the weak nuclear force (and presumably by the much weaker gravitation force) are calleddt46 1u5iaw*xlqw4o l 4n m2lx
A. gauge bosons.
B. leptons.
C. baryons.
D. mesons.
