Answer: The correct choice for the question "How has the American civil service system changed since George Washington's presidency?" is A: "It has developed into more of a merit-based system for selecting officials."
Step-by-step explanation:
The American civil service system has changed since George Washington's presidency by developing into a more merit-based system for selecting officials. This change has been driven in part by efforts to reduce corruption and increase efficiency within the government. The other choices provided, including the reduction of size and scope to maintain limits on federal power, an increase in the use of the spoils system, and becoming more directly influenced by disputes between political parties, are not accurate.