While investigating a newly discovered Gram-negative bacterium, you find that when the bacteria die, the host experiences severe fever and inflammation. You suspect that the bacterium has in its outer wall membrane.

The bacterium has lipopolysaccharide in its outer wall membrane.

Explanation:

Gram negative bacteria does't stain in crystal violet and they are characterized by cell envelope,that contain thin peptidoglycan present between inner cytoplasmic cell membrane and a outer membrane contain lipopolysaccharide.

Gram negative bacteria include E.coli,Pseudomonas aeruginosa,Neisseria gonorrhoea,Chiamydia trachomatis,Yersinia pestis.

The outer membrane protects them from antibiotics,detergents,peptidoglycans of inner cell membrane.

They contain flagella  which have 4 supporting rings.

Lipoprotein acts as connecting link between outer membrane and peptidoglycan chain.

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.