During the late 19th century, urban political "machines" and those that ran them A) were only members of the Democratic Party B) were nearly always first generation Americans C) supported women's suffrage and equal rights for African-Americans in the "Jim Crow" South. D) promised business contracts, government jobs, and money for the poor immigrants in exchange for votes

the answer to fill in the blank in this question would be the word resource, it is defined as the money, material or people (since human resource is a very valuable good) that a company or a person has at disposition (meaning they can use the resource as they see fit), to be able to complete a task or achieve a goal.  

the correct answer is d. the monetary reserve is a set of funds represented in currency, money or similar, saved as a forecast of possible needs or for legal reasons.

the increase or decrease in the monetary base influences in the increase or decrease of the inflation rate. therefore, the excess of monetary reserve will cause the reduction of inflation.