Which option presents citation information in the most c

Which option presents citation information in the most credible way? A) According to Elana Martin, company spokesperson, ‘the error has not been traced to its ultimate source.’ B) According to various sources, ‘the error has not been traced to its ultimate source.’ C) ‘The error has not been traced to its ultimate source,’ said the company spokesperson during Saturday’s interview. D) This error has not ‘been traced to its ultimate source,’ according to a company spokesperson.