In a toys manufacturing company, wooden parts are assembled and painted to prepare a toy. One specific toy is in the shape of a cone mounted on a cylinder.
For the wood processing activity center, the wood is taken out of storage to be sawed, after which it undergoes rough polishing, then is cut, drilled and has holes punched in it. It is then fine polished using sandpaper.

For the retail packaging and delivery activity center, the polished wood sub-parts are assembled together, then decorated using paint.
The total height of the toy is 26 cm and the height of its conical part is 6 cm. The diameters of the base of the conical part is 5 cm and that of the cylindrical part is 4 cm.

If its cylindrical part is to be painted yellow, the surface area need to be painted is

Options

A. `80 pi sq cm`
B. `82 pi sq cm`
C. `84 pi sq cm`
D. `88 pi sq cm`