According to the human development report of 2019, the human development indices of the above mentioned regions are as follows:-
Europe - 0.779, Latin America - 0.759, East Asia - 0.741, Arab states - 0.743, South Asia - 0.642.
Thus, the correct order of arranging these regions as per their human development indices would be:-
Europe > Latin America > East Asia > Arab states > South Asia.