Question

1. which statement from the text best illustrates the relationship between scientific advancement and corresponding public controversies?

a. “the accomplishment is a long - sought step toward harnessing the potential power of embryonic stem cells” (paragraph 2)
b. “this is a huge scientific advance,” said dr. george daley, a harvard stem cell scientist who wasnt involved in the work. “but its going to, i think, raise the specter of controversy again.” (paragraph 3)
c. “but every previous attempt ended in failure or fraud, leading many scientists to wonder if the goal might be impossible to reach.” (paragraph 8)
d. “first of all, the oregon researchers compensated women financially to donate eggs for the experiments – something many in the field have considered ethically questionable.” (paragraph 18)

Explanation:

Option B directly mentions a scientific advance and the anticipation of controversy. Option A only talks about a scientific step without controversy. Option C focuses on past failures and doubts, not the relationship between advance and controversy. Option D is about an ethical - controversial aspect of an experiment, not a general relationship between scientific advance and public controversy.

Answer:

B. "This is a huge scientific advance," said Dr. George Daley, a Harvard stem cell scientist who wasn't involved in the work. "But it's going to, I think, raise the specter of controversy again." (Paragraph 3)