Answer:
Most of Africa had been colonized by European powers by the end of the 19th century.
Step-by-step explanation:
The only French colonies were located on the continent of Africa must be wrong, as there are french colonies is America (Lousiana) and Asia (Siam). Australia was controlled by the United States at the end of the 19th century is also wrong, since America NEVER controlled Austrailia. There were no European colonies in South America at the end of the 19th century is also definitely wrong - many were there as early as the 16th century. Most of Africa had been colonized by European powers by the end of the 19th century is true though. It's known as the scramble for Africa.