GRE Reading Comprehension: ETS-GRE阅读ETS - WJJ8148U74X174DM7

The passage provides information that would answer which of the following questions EXCEPT? A. How much incidental radiation is produced in the deuterium tritium fusion reaction? B. What is likely to be the principal source of deuterium for nuclear fusion power? C. Why are scientists exploring the deuterium-tritium fusion reaction with such zeal?