The old gardener used to keep all his tools and do-it-yourself equipment in a ______ in the garden.

A．those who engage private teachers to provide additional education for their children
B．those who educate their children at home instead of sending them to school
C．those who advocate combining public education with home schooling
D．those who don’t go to school but are educated at home by their parents

A．there isn’t much they can do to change the" present situation
B．they want to show their tolerance for different teaching systems
C．home schooling provides a new variety of education fur children
D．public schools have so many problems that they cannot offer proper education for all children