A．The demand for commercial products will not necessarily keep increasing.
B．Nuclear energy is something we cannot do without.
C．Uranium is good source of energy for economic and ecological reasons.
D．Greater safety provisions can bring about the expansion of nu clear energy programs.

A．the need to find an authority
B．the need to find a way to achieve the desired result
C．the need for more affection from his parents
D．the desire to meet the standards of his social group