1.x/(1+∣x∣)x/(1+|x|)x/(1+∣x∣) is diff ona.(−∞,∞)(-\infty,\infty)(−∞,∞)b.(0,∞)(0,\infty)(0,∞)c.(−∞,0)∪(0,∞)(-\infty,0)\cup(0,\infty)(−∞,0)∪(0,∞)d.(−∞,0)(-\infty,0)(−∞,0)Login to continueOnly logged in users canattempt or see the solution.