Under Section 152 Companies Act 2013, in the case of a public company, at least TWO-THIRDS of the total number of directors shall be liable to:

1. Section 152(6)(a) Companies Act 2013: 'Unless the articles provide for the retirement of all directors at every annual general meeting, NOT LESS THAN TWO-THIRDS of the total number of directors of a public company shall — (i) be persons whose period of office is liable to determination by retirement of directors by rotation; and (ii) save as otherwise expressly provided in this Act, be appointed by the company in general meeting.' 2. Section 152(6)(c): at every annual general meeting, ONE-THIRD of such directors (or the nearest to one-third) for the time being liable to retire by rotation shall retire from office. 3. Section 152(6)(e): the directors to retire shall be those who have been longest in office since their last appointment. 4. Independent directors do not retire by rotation. 5. Hence option A is correct. _Source: Companies Act 2013 (Act 18 of 2013), Govt. of India MCA — Companies Act 2013, Section 152(6)_