Consider the following statements: Revealer rv1-new Revealer; Revealer rv2 new Revealer(); What can we assume about Revealer? O It is a derived class It is an interface O It is a generic class It is an abstract class Consider this method definition: static int someRecMethod( int n) if(n right) return 1; else int midpoint (left + right) / 2; if (a[mid point]-target) return midpoint return search (a, target, midpoint + 1, right); return search (a, target, left, midpoint - 1); else if (a[midpoint]