1. PART A: Which of the following best summarizes this article?
A. A group of scientists recently generated embryonic stem cells
through cloning, which may help cure many diseases, though the
process raises serious ethical concerns.
B. Stem cell research has long been hindered by controversy and
repeated attempts to publish falsified data and experiments.
C. The most powerful criticism of stem cell research revolves
around the fact that it necessarily and universally involves
destroying human embryos.
D. Several scientists have already begun attempting to generate
living human clones, and the generation of embryonic stem cells
provides a vital stepping-stone to their efforts.