How did the change in breastplates and helmets contribute to the decline of the roman empire

all of the choices are correct

answer; i believe the best answer is (straight ticket); good luck

(b) britain had a much larger navy than the u.s.

(d) the u.s. had a small army compared to britain.

monopolies  came to the united states with the colonial administration. the large-scale public works needed to make the new world hospitable to old world immigrants required large companies to carry them out. these companies were granted exclusive contracts for these works by the colonial administrators. even after the american revolution, many of these colonial holdovers still functioned due to the contracts and land

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