With respect to the relation ‘x divides y’, which of the following sets are totally ordered ?
I. {36,3,9}
II. {7,77,11}
III. {3,6,24,12}
IV. {1,2,3,……}

in a set with relation x divides y, every quotient for a division within the set should be present in the set…in set II 77/11=7 which is present in the set and 77/7=11 is also present in the given set.