The correct option is D By either House of Parliament
The President can be removed from his office by a process known as impeachment. The impeachment charges can be initiated by either House of the Parliament. These charges should be signed by one fourth members of the House(that framed the charges), and a 14 days notice should be given to the President. After the impeachment resolution is passed by a majority of two-thirds of the total membership of that house it is sent to other house which investigate the charges.