A.All of the above.

B.Junction object records are deleted when either associated master record is deleted and placed in the Recycle Bin.

C.If both associated master records are deleted, the junction object record is deleted permanently and can't be restored.

D.The first master-detail relationship you create on your junction object becomes the primary relationship.

A.Visual Workflow

B.Workflow Rules

C.Lightning Connect

D.Lightning Process Builder

A.Data can be lost when changing from Rich Text to Long Text

B.Data is lost when changing Number to Currency

C.No data is lost when converting Text to auto number

D.Rollup summary fields will stop calculate if Master Detail is changed to lookup

E.No data is lost when changing Picklist to Multipicklist

A.Workflow

B.Flow

C.Approvals

D.Process builder

A.Start and end dates

B.Number of attachments

C.Frequency, if your organization supports monthly exports

D.Time of day