Identify the electronic community that is a social-networking site.
a) blogger b) myspace c) netscape navigator d) usenet

Abasic wooden railway set contains the pieces shown in figure 3.the task is to connect these pieces into a railway that has no overlapping tracksand no loose ends where a train could run off onto the floor.a. suppose that the pieces fit together exactly with no slack. give aprecise formulation of the task as a search problem.b. identify a suitable search algorithm for this task and explain yourchoice.in c/c++ or python language, !