Assertion (A): In dihybrid crosses involving sex-linked genes in \(\textit{Drosophila}\), generation of non-parental gene combinations are observed
Reason (R): Two genes present on different chromosomes show linkage and recombination in \(\textit{Drosophila.}\)
\(( \text{Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of the Assertion (A).} )\)
\(( \text{Both Assertion (A) and Reason (R) are true, but Reason (R) is not the correct explanation of the Assertion (A).} )\)
\(( \text{Assertion (A) is true, but Reason (R) is false.} )\)
\(( \text{Assertion (A) is false, but Reason (R) is true.} )\)
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 \(P,O,Q\).