Question 9Which of the following is equal to $$\frac 1{\sqrt{2000}+\sqrt{2004}}+\frac 1{\sqrt{2004}+\sqrt{2008}}+\frac 1{\sqrt{2008}+\sqrt{2012}}+\frac 1{\sqrt{2012}+\sqrt{2016}}?$$$3\sqrt{14}-5\sqrt 5$$4\sqrt{14}-5\sqrt 5$$3\sqrt{14}-5\sqrt 3$$3\sqrt{14}-3\sqrt 5$$3\sqrt 7-\sqrt 5$