For a pin jointed steel truss system, which of the following

For a pin jointed steel truss system, which of the following statements is TRUE?

1. Bending moment resisting capacity at any section is zero as members carry axial forces only.
2. Forces in members at any section align in appropriate combination of tension and compression to develop moment resisting capacity.
3. Forces in members at any section align in such a manner as to develop zero moment resisting capacity.
4. Shear resisting capacity at any section is zero as members carry axial forces only

Forces in members at any section align in appropriate combination of tension and compression to devel op moment resisting capacity.