Which two things do they need to be aware of?

A salesforce Manufacturing cloud admin wants to change the forecast frequency form quarterly to monthly in the account settings.

Which two things do they need to be aware of?
A . The administrator grants them to right make changes to the forecast settings in the adjustments.
B . A full regeneration of all the eligible account forecasts will be carried out.
C . A recalculation of the forecast for the accounts added since the least update will be carried out
D . The length of the time that has elapsed since the last change to the forecast setting.
E . All the previously active account forecasts will expire

Answer: B,E