A museum in memory of the life and work of Charles Schulz was established in Santa Rosa, California in the year of ______.

A．Alcohol.
B．Electricity.
C．Synthetic fuel.
D．Solar energy.

A．To explain a new requirement for graduation.
B．To interest students in a community service project.
C．To discuss the problems of elementary school students.
D．To recruit elementary school teachers for a special program.