After the implementation of economic reforms, Pakistan experienced slowdown of growth due to various reasons including _______ .
(Choose the correct alternative to fill in the blank):
(i) Volatile performance of the agriculture sector
(ii) Over-dependence on remittances from abroad
(iii) Political instability
Pakistan faced several challenges post-reforms:
Volatile agriculture sector: Inconsistent performance led to economic instability.
Over-dependence on remittances: A lack of diversification in revenue sources made the economy vulnerable.
Political instability: Created uncertainty, deterring foreign investment and slowing economic growth.
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 \(P,O,Q\).