Which of the following statements about US civil service are correct ? (i) The spoils system began to be eroded with the enactment of Civil Service Reforms Act, 1883. (ii) The merit system expanded steadily to almost all of federal employees. (iii) The overwhelming proportion of bureaucrats are career civil servants selected on the basis of competitive examination. (iv) Approximately 15000 job skills are represented within the federal work force. Select the correct answer by using codes given below :Codes :

• A. (i), (ii) and (iii)
• B. (i), (iii) and (iv)
• C. (ii), (iii) and (iv)
• D. (i), (ii), (iii) and (iv)