Which area of geographical study focuses on examining landforms, soils, and bodies of water?

The answer is physical geography.

Also known as geosystems of physiography, physical geography deals with the study of patterns in the natural environment like the biosphere, geosphere, atmosphere, and, hydrosphere. This study focuses a lot more on the spatial characteristics of the various happenings associated with the earth’s layers and spheres such as mountains, rivers, weather, landforms, soils, plants and many other physical aspects.

it sounds like either a or c

radiative zone

explanation    

radiative zone is the layer of the sun which energy is transferred away from the core by radiation. although, the core is the only part of the sun that produces an appreciable amount of heat through fusion. in fact, 99% of the energy produced by the sun takes place within 24% of the sun's radius.