According to the account, which events caused the Boston Massacre? A. Colonists resisted when a British customs official attempted to collect taxes, and British soldiers were called in to restore order. B. Disagreement among groups of colonists gathered in protest led to a riot, and British soldiers fired shots to disperse the crowd. C. Armed British soldiers mistreated colonists, who became agitated and threw snowballs; then the soldiers fired on the colonists. D. A mob of angry colonists attacked British soldiers and trapped them against the Customs House, then the soldiers fired on the colonists.