Why Were Americans Increasingly Reluctant to Accept the Dangers of Involvement

Why were Americans increasingly reluctant to accept the dangers of involvement overseas?

A) The conflicts of the 1990s were not severe enough to merit intervention.
B) The warring factions of the conflicts of the 1990s were militarily powerful.
C) Americans worried about their image among their European allies.
D) Americans did not see obvious military or economic advantages in these interventions.