Who Are Children Raised on a Kibbutz in Israel Most

Who are children raised on a kibbutz in Israel most likely to marry?

A) people they meet outside of the kibbutz after they leave in their late teens to serve in the armed forces
B) people that they shared the kibbutz experience with,but did not share the same residence
C) people from the same residence that they have grown up with
D) people from the same work group within the kibbutz