Arrange the following in chronological order and choose the correct option:
I. Battle of Talikota
II. Establishment of Nagalpuram
III. Formation of Kamalpuram Tank
IV. Emergence of the Sultanate of Golconda
I, II, III, IV
II, III, IV, I
III, II, IV, I
IV, I, III, II
A racing track is built around an elliptical ground whose equation is given by \[ 9x^2 + 16y^2 = 144 \] The width of the track is \(3\) m as shown. Based on the given information answer the following: 
(i) Express \(y\) as a function of \(x\) from the given equation of ellipse.
(ii) Integrate the function obtained in (i) with respect to \(x\).
(iii)(a) Find the area of the region enclosed within the elliptical ground excluding the track using integration.
OR
(iii)(b) Write the coordinates of the points \(P\) and \(Q\) where the outer edge of the track cuts \(x\)-axis and \(y\)-axis in first quadrant and find the area of triangle formed by points \(P,O,Q\).