1)b-> begins at age nine or ten
2)c->it is no wonder that Russian ballet dancers perform with ease leaps and lifts seldom attempted elsewhere
3)b-> nine years of ballet discipline is almost unheard of outside Russia.
4)d->Stars such as Ulanova were produced in this fashion,with training started early and security,if not intellectual independence,guaranteed.
5)b->As in other institutions of higher learning,ballet students receive monthly government stipends in their last four years