The correct answer is: D. Till a new auditor is appointed.
The first auditor of a company will hold office till a new auditor is appointed. This is because the first auditor is appointed by the board of directors, and the board of directors can remove the auditor at any time. The auditor can also resign at any time. If the auditor is removed or resigns, the board of directors will need to appoint a new auditor.
Option A is incorrect because the first auditor of a company does not have to hold office for a period of one year. The board of directors can remove the auditor at any time, and the auditor can also resign at any time.
Option B is incorrect because the first auditor of a company does not have to hold office till the holding of statutory meeting. The statutory meeting is the first meeting of the shareholders of a company, and it is usually held within 21 days of the company being incorporated. The auditor does not have to hold office until the statutory meeting is held.
Option C is incorrect because the first auditor of a company does not have to hold office till the conclusion of the first annual general meeting. The annual general meeting is the meeting of the shareholders of a company that is held once a year. The auditor does not have to hold office until the first annual general meeting is held.