Consider the following statements regarding the Parliamentary approval and duration of President's Rule (Article 356):
A proclamation of President's Rule must be approved by both Houses of Parliament within two months of its issue.
Once approved, it can continue for a maximum period of three years, subject to parliamentary approval every six months.
For any extension beyond one year, it is mandatory that a proclamation of National Emergency is in operation and the Election Commission certifies that elections cannot be held.
Which of the statements given above is/are correct?
A1 only
B1 and 2 only
C2 and 3 only
D1, 2 and 3
