This muscle, located deep in the buttock, adducts the thigh; it is the muscle used for dorsagluteal injections:
a. gluteus maximus
b. gluteus medius
c. rectus abdominus
d. vastus lateralis

a. gluteus maximus

Explanation:

The gluteus maximus muscle belongs to the most superficial layer of the dorsal gluteus musculature, being a thick and quadrilateral mass that forms the buttock prominence. Its upper edge is thin and covers the gluteus medius muscle, while its lower edge is prominent and free, moving inferolaterally and being crossed by a horizontal gluteal fold.

This is the muscle used for dorsagluteal injections.

answer: blah

explanation:

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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.