after president james garfield's assassination, the government began reforms in

a. the number of cabinet departments
b. the civil service system
c. the constitution
d. the executive branch
b

Right.

After President James Garfield's assassination, the government began reforms in the civil service system. To find this answer, you can start by researching the period following Garfield's assassination, which took place in 1881. Look for information on the reforms and changes implemented by the government during that time. You can search for reliable sources such as history books, scholarly articles, or reputable websites to learn more about the government's reforms. Additionally, you can also refer to primary sources such as official government documents or speeches made by political figures of that era.