A. (2.5 pts each) Determine whether the binary relation is: reflexive, irreflexive, symmetric, anti- symmetric, asymmetric, transitive. (NOTE: Shade the cell if you select the property; otherwise leave it blank) a. The relation R on positive integer where R- ((a, b)| 2la and 4b) b. The relation R on Z where R - ((a,b) | The unit's digit of a is equal to the unit's digit of b c. The relation R on the set of all people where R {(a,b) la is younger than b or b is older than a) d. The relation R on (-2,-1,0, 1, 23 where R (a,b) a b). Relation ReflexiveIrreflexive Symmetric Anti- Asymmetric Transitive symmetric