How can Reagan's Challenger speech be considered a persuasive speech? A Because the President is persuading the American people that sacrifices are a part of exploring new frontiers. B Because the President is persuading grieving families that being strong in the face of grief is the right reaction c Because the President is persuading NASA that space exploration must continue despite the monetary and human D Because the President wants Americans to know that the space race against Russia will not end with the deaths of​