Which word can best describe the author's attitude towards the research of cancer

A．To predict that the secret of cancer will be disclosed in a decade.
B．To indicate that the prospects for curing cancer are bright.
C．To prove that cancer will be cum in fifty to sixty years.
D．To ware that there is still a long way to go before cancer can he conquered.

A．All-round people in their own fields.
B．People whose job is to organize other people's work.
C．Generalists whose educational background is either technical or professional.
D．Specialists whose chief concern is to provide administrative guidance to others.