In a parliamentary republic, a often serves as both head of state and head of government.
a.
prime minister
b.
king
c.
dictator
d.
monarch

In a parliamentary republic, a A. Prime Minister often serves as both head of state and head of government.

Explanation: The Prime Minister is the head of the state/cabinet and leads all of the ministers who serve on the executive branch of the government. A Prime Minister often works more closely and with the overall government of the country and not just the state level 

uhh idk for sure but i think it makes it difficult to pump the oil through the oil rigs

not  

cuba  

russia  

iraq  

el salvador  

explanation:

known as the land of volcanoes, el salvador has visit seismic tremors and volcanic movement. it is the main nation in central america that does not have a coastline on the caribbean sea. about portion of all salvadorans live in the wide open. they are poor and don't have power or running water in their homes. in 1525, pedro de alvarado, a lieutenant of cortés's, vanquished el salvador. el salvador, with alternate nations of central america, pronounced its freedom from spain on sept. 15, 1821, and was a piece of a league of central american states until the point when that association broke up in 1838.