As a result of a supernova explosion, every human being on Earth was bombarded on February 23, 1987, by about 100 billion neutri
nos; fortunately, neutrinos are harmless elementary particles that are produced in nuclear reactions and that interact very weakly with matter. (A) neutrinos are harmless elementary particles that are produced in nuclear reactions and that
(B) neutrinos, which are harmless, are elementary particles produced in nuclear reactions and which
(C) neutrinos are harmless elementary particles produced in nuclear reactions and which
(D) these harmless elementary particles are produced in nuclear reactions, and neutrinos
(E) these elementary particles, harmless products of nuclear reactions, are neutrinos that
It would be the job of the "c. the president of the United States" to uphold the supremacy clause of the United States Constitution, since this ensures the power of the federal government over the states.
