How are the relative lengths of the frog's small intestine and large intestine related to their functions?

The lengths of the small intestine and large intestine is relatively large generally twice the length of their body length, The functions are benefited by by the length of their small intestine and large intestine of the frog.

Intestine of the frog is small intestine which is twice the size of the frog itself normally and responsible for the absorption of the nutrients and digestion of the food. The length of the small intestine helps in provide enough time t absorb all the nutrients through the wall linings to blood.

Large intestine is also large that is responsible for the absorption of the water and store the undigested food, the water is absorbed through the wall of the undigested food.

c. earths continental crust is thicker than its lithosphere.

because, the lithosphere is the outermost layer of the earth/ 100 km thick and is defined by its machanical properties.the lithosphere contains oceanic and continental crust that varies in age and thickness across locations and geologic time. the lithosphere is the coolest layer of the earth in terms of temperature. the term lithosphere should not be confused with the use of "geosphere" which is used to indicate all of earth systems, including the atmosphere, hydrosphere   and biosphere. the surface of the earth can be divided into the continental crust and the oceanic crust.   the continental crust is made mostly of granite while the oceanic crust is made of basalt. the average thickness of the continental crust is 25 miles and the average thickness of the oceanic crust is 5 miles.   three types of rock, igneous, sedimentary, and metamorphic, make up the surface of the earth. that's why 3 option is preferable.