Which ethnicities were under the control of the habsburg empire in the 1800s? select all that apply.
a.) slaves
b.) czechs
c.) hungarians
d.) french
e.) austrians
f.) italians
g.) dutch
h.) portuguese

The correct options are:  Slaves - Czechs - Hungarians - Austrians

The Habsburg Empire sometimes also referred to as the Danube Monarchy (Donaumonarchie), is an unofficial denomination among the historians of the countries and provinces that were governed by the Austrian branch of the Habsburg House until 1780 and then by the branch successor of the Habsburg-Lorraine until 1918. The monarchy was a composite state formed by the territories inside and outside the Holy Roman Empire, united only in the person of the monarch. The capital of the dynasty was Vienna, except between 1583-1611, when he moved to Prague. From 1804 to 1867 the monarchy of the Habsburgs was formally unified as the Austrian Empire, and from 1867 to 1918 as the Austro-Hungarian Empire.

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explanation:

answer; people where able to travel across the u.s.a faster than any other mode of transportation,travel time was about a week,from coast to coast