a) Because the past risk checklist was created based on past information and
knowledge, it is used as a reference for the new checklist that is to be created.
b) Because the past risk checklist is created based on past information and knowledge,
risks that are not mentioned in it do not need to be considered.
c) The past risk checklist is used without modification in order to ensure that there are
no discrepancies between projects.
d) Because risks change with projects, a new risk checklist is created based on only the
risks that are not mentioned in the past risk checklist.