Option (B) is incorrect because the agricultural marketing system primarily includes:
Assembling: Collection of produce from farms.
Storage and Transportation: Safeguarding and moving produce to markets.
Processing: Converting raw produce into finished goods.
Grading and Packaging: Preparing produce for sale.
Distribution: Delivering goods to consumers or retailers.
Option (B) incorrectly includes Production, which is a part of the agricultural sector but not of the marketing system. Marketing begins only after production is completed.
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 \(P,O,Q\).