You were walking down the street with your friend sabrina when she stopped to ask a child why he was crying. the boy said that he was lost, so sabrina took time out of her busy day to the child find his way home. sabrina's behavior can be characterized by group of answer choices the reciprocity norm. egoism. the social-exchange theory. altruism.

Sabrina's behavior can be characterized by "Altruism".

Explanation:

Altruism means showing concern or care for others and going out of your way to help make people feel better. It is a selfless act carried out, not for the sake of any reward and may sometimes come at a personal cost to the helper.

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

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