The correct answer is option 4: All India Services serve both the Union and State Governments. The All India Services are the three services of the Government of India - the Indian Administrative Service (IAS), Indian Police Service (IPS), and Indian Forest Service (IFS). These services are responsible for the administration and governance of both the Union (Central) and State Governments. Members of these services are recruited and trained by the Central Government but are employed by both the Union and State Governments. They serve in various capacities at the Central, State, and District levels. So, option 4 is correct as it accurately describes the jurisdiction of the All India Services.