Final answer:
The surface area of a right cone is calculated using the formula SA = πr² + πrl, where r is the radius and l is the slant height. Without more specific information about the dimensions of the cone, it's not possible to determine the correct surface area from the options provided.
Step-by-step explanation:
The surface area of a right cone consists of two parts: the base area and the lateral surface area. The base area is a circle with the formula πr², where r is the radius of the base. The lateral surface area can be calculated using the slant height (l), and the radius (r) of the cone with the formula πrl. Therefore, the total surface area (SA) of a right cone is given by the formula SA = πr² + πrl.
To answer the question specifically, more information about the dimensions of the cone is required such as its radius, height, or slant height. Based on the provided options, it seems we should solve for the surface area in terms of a variable such as 'x' or 's'. It's not possible to determine the correct answer without additional specifics on the dimensions involved or the context from which the values for 'x' and 's' originate. Without this context or additional information, the correct answer cannot be determined from the options provided: A. 896x units, B. 176x units², C. 224st units, D. 167x units.
If more accurate dimensions or variables were given, the calculation would involve plugging these into the surface area formula and solving to find the correct units² value that matches one of the provided options.