In selecting among eligible entities to receive grants under paragraph (1) and the amounts of each of those grants, the Secretary shall give priority to eligible entities that have achieved the most significant levels of reduction in serious injuries and fatalities, as measured either on a per capita basis or per-vehicle mile traveled basis. (C) Multiple awards The Secretary may— (i) award a grant under paragraph (1) to multiple eligible entities for each performance category described in subparagraph (A)