GMATNinja wrote:
urvashis09 wrote:
Bumping in for further discussion. In this official question, "that" is modifying neutrinos defying the touch rule:
As a result of a supernova explosion, every human being on Earth was bombarded on February 23, 1987, by about 100 billion neutrinos; 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
(B)
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