Comprehensive ports (option D) are those which handle both bulk and general cargo in large volumes. They provide facilities for various types of cargo, including raw materials, machinery, and consumer goods, making them versatile and important for international trade.
- Ferry Ports (A) are typically used for transporting passengers and vehicles rather than bulk cargo.
- Inland Ports (B) refer to ports located inland, often on rivers or lakes, and may not always handle large volumes of cargo.
- Ports of Call (C) are ports where ships stop during a journey, but they are not necessarily focused on handling large cargo volumes.
Hence, option (D) is the correct answer.
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 \(P,O,Q\).