Which of the following have same radius according to Bohr's theory : (A) Radius of \(1^{st}\) orbit of H-atom. (B) Radius of \(1^{st}\) orbit of He\(^{+}\). (C) Radius of \(II^{nd}\) orbit of He\(^{2+}\). (D) Radius of \(II^{nd}\) orbit of Li\(^{2+}\). (E) Radius of \(II^{nd}\) orbit of Be\(^{3+}\).