A.NOT(Hours_Worked__C > 0)

B.Hours_Worked__C < 0

C.Hours_Worked__C <> 0

D.Hours_Worked != 0

E.NOT(Hours_Worked < 0)

F.Hours_Worked < 0

A.Profile

B.Role

C.Username

D.Email Id

A.All Chatter users

B.The system admin

C.Group owner

D.None of the above

A.Commit Date

B.Opportunity Close Date, Product Date, Schedule Date

C.Schedule Date Only

D.Product Date Only

E.Opportunity Close Date Only