【单选题】

When accumulated revisions, including back-up pages, total over 60% of the total pages in the manual, a reissue of the manual should be prepareD.

A、When the cumulative revised pages (including back-up pages) exceeds 60% of the total pages of the manual, a reissue should be prepareD.
B、If the updated pages, including back-up pages, were less than 60% of the total page of the manual, a new manual should be copieD.
C、Up to 60% of total pages (including back-up pages) were accumulated by mistake, the manual should be rewritten.