Please answer only if you're familiar with this topic.

Perform the Generalized Arc Consistency on the following constraint graph, and select the correct domains for each variable, once pruning is complete. XS Y Y [2,4) X [1, 2, 3, 4] Y = Z X > Z Z [2,5,8) O X = {3}, Y = { }, Z = { } OX = {2}, Y = {2}, Z = {2} OX = {3}, Y = {4}, Z = {2} O X = {2, 3}, Y = {2, 4}, Z = {2} OX = {1, 2, 3, Y = {2,4}, Z = {2,5} The arcs are all arc-consistent, hence no pruning can be done and the domains remain the same. For the above constraint graph, the Arc Consistency algorithm leads to which of the following outcomes? Some domains have more than one value, which means there may be zero, one, or multiple solutions. Each domain has a single value, so there is a unique solution One domain is empty, so there is no solution