Change in caste system in later vedic period

Me ! which of the following statements describes how the punic wars contributed to the development of the roman empire? a)they allowed the romans to focus more on expanding into the western mediterranean. b)they resulted in the overthrow of the roman republic and establishment of the empire. c)they marked the end of roman expansion in the mediterranean region. d) they forced the romans to reorganize their government with an emperor as ruler.

As the result of a conflict between british troops and a colonial militia in massachusetts

Which of these events was a severe setback for the u.s. war effort in the pacific?