The best strategy to give an ___________ is to deliver it orally as well as in ___________ . It is also important to the ___________ employee's achievements in the same manner.

The second sentence talks about employee's achievements, and 'appreciation' or 'appraisal' are the best words to be used in this context. 'appraisal' is the best choice as it is implied that it should not be just given orally, but also should be given in 'writing'. To 'recognise' the employee's achievements by giving them 'appraisals' not only orally but also in the form of 'writing' is the best choice of words to use here. Option A says 'promote' employee's achievements and is incorrect. Option B uses 'indictment' which is not a positive word. Option D is incorrect as it mentions that the appreciation should be delivered in 'increments' or 'in small quantities'. The answer, therefore, is option C.