To answer this question, you need to have some knowledge of Hindu festivals and their associated terms.
Option A) Devipaksha - This option is incorrect. Devipaksha refers to the period of the waxing moon in the Hindu month of Ashwin, which is the first fortnight of the month. It is not specifically related to Durga Puja.
Option B) Krishnapaksha - This option is incorrect. Krishnapaksha refers to the period of the waning moon in the Hindu month of Ashwin, which is the second fortnight of the month. It is not the special name of the fortnight in which Durga Puja is celebrated.
Option C) Suklapaksha - This option is incorrect. Suklapaksha refers to the period of the waxing moon in the Hindu month of Ashwin, which is the first fortnight of the month. It is not specifically related to Durga Puja.
Option D) Mahalaya - This option is correct. Mahalaya is the special name of the fortnight in which Durga Puja is celebrated. It is the first day of the waxing moon in the Hindu month of Ashwin, which marks the beginning of the Durga Puja festivities.
The correct answer is D) Mahalaya. This option is correct because Mahalaya is the special name of the fortnight in which Durga Puja is celebrated.