The author's attitude towards genetic technologies is ______.

A．The Basic Function of Genetic Engineering
B．New Applications of Genetic Engineering
C．Recombinant DNA Technology: A New Process in Genetic Engineering
D．The Promises & Dangers of Technological Development

A．there will inevitably be a heated debate over the general application of recombinant DNA technology
B．the use of the recombinant DNA technology on human beings will be forbidden
C．the recombinant DNA technology can be traced back to hundreds of years ago
D．serious dilemmas may be generated when recombinant DNA technology is used to modify human genetic code