I and II
I and III
II and III
I, II and III
`5`
`6`
`7`
`8`
reflexive
syrnrnetric
transitive
None of these
reflexive but not symmetric
symmetric but not transitive
transitive but not reflexive
an equivalence relation
`A cap B` is an equivalence relation
`A cap B` is not an equivalence relation
`A cup B` is an equivalence relation
`A cup B` is not an equivalence relation
reflexive and symmetric
symmetric only
transitive only
anti-symmetric only
reflexive
symmetric
transitive
None of these