Why do lobbyists pay more attention to activity in congressional committee than activity on the floor of Congress

first, the romans stayed isolated because they had to defend their own territories from neighboring cities that were harassing them, like the etruscans. second, once the romans managed to defeat their neighbors, and started to expand their territory, they started to build roads and bridges. finally, now that the romans have covered their territory with roads functioning as highways, they could mobilize their legions faster to assemble larger military units in a specific place

where are the choices

answer; protecting domestic national security; i believe this is correct,plz check first,good luck;