Discuss the continuity of the function f,where f is defined by\(\left\{\begin{matrix} -2, &if\,x\leq-1 \\ 2x,&if\,-1<x\leq 1 \\ 2,&if\, x>1 \end{matrix}\right.\)
Let R be the relation in the set {1, 2, 3, 4} given by R = {(1, 2), (2, 2), (1, 1), (4, 4), (1, 3), (3, 3), (3, 2)}. Choose the correct answer. A. R is reflexive and symmetric but not transitive. B. R is reflexive and transitive but not symmetric. C. R is symmetric and transitive but not reflexive. D. R is an equivalence relation.