In the1960’s, the United States was involved in Vietnam primary because:(1 point)Responsesthe American people supported the involvement in Vietnam.the American people supported the involvement in Vietnam.it feared that if Vietnam became communist there would be a domino effect causing surrounding countries to become communist.it feared that if Vietnam became communist there would be a domino effect causing surrounding countries to become communist.Cambodia was threatened militarily by the possibility of a Communist government in Vietnam.Cambodia was threatened militarily by the possibility of a Communist government in Vietnam.American businesses in Vietnam supported Communist control.

The correct answer is: it feared that if Vietnam became communist there would be a domino effect causing surrounding countries to become communist.