Which of the following statements are true with respect to public employment under theConstitution of India ?(a) Parliament may make a law prescribing any requirement as to the residence within the state or union territory as a precondition for public employment in a particular state or union territory.(b) Any State Government in India can make a law providing for requirement as to the residence within the state for the public employment under its authority.(c) Reservation in promotion may be made in favour of any backward classes of citizens not adequately represented in the services under the state.(d) Backlog in reservations from the previous year needs to be considered together with the reserved vacancies of the year in which they are being filled up for determining the 50% ceiling on reservation seats of that year.

• A. (a),(b)
• B. (a), (d)
• C. (a), (b), (c), (d)
• D. (a)