How is adrenaline involved in the cell to cell communication of a person with Congestive heart failure?

There are several causes of heart failure including disorder of the heart muscle, high blood pressure, and diabetes etcetra.

Adrenaline is a hormone which is secreted by adrenaline glands specially under the condition of stress which can cause heart failure.  Adrenaline binds to alpha adrenergic receptors which is found in coronary arteries in the heart that speeds up the heart rate and can cause heart failure.

Beta blockers are used to cover the receptors present in the heart that restricts the binding of adrenaline and receptors and hence prevents heart failure.

this is a good question! i'll do some research and come back when i have the answer!

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.