Expressed powers are. a) granted to the national government by the u. s. constitution. b) granted to state governments by the u. s. constitution. c) also referred to as concurrent powers. d) also referred to as reserved powers

The answer for this item is letter "A. granted to the national government by the U.S Constitution". These are also known as "enumerated powers" which include the power to regulate foreign and estate commerce, power to coin money, declare war, etc. 

Ithink the answer is d. the lower appellate and trial courts in the state. 

Complementary goods. they go together, thats why one price increase and the others demand increases