Consider the following statements regarding the All India Services:
The All India Services are controlled jointly by the Central and State Governments, with ultimate control vested in the Central Government.
Officers of the All India Services are appointed to various State cadres but cannot work in Central Services.
The All India Services Act, 1951, mandates that at least one-third of senior posts in these services be filled by promotion from State Services.
Which of the statement(s) given above is/are correct?
A1 and 2 only
B1 and 3 only
C2 and 3 only
D1 only
