Consider the employee$-$project relational database in Lecture #$1$:

Employee $($ EmployeeID, FullName, Salary $)$

Project$($ ProjectID, Description, CompletionYear $)$

IsAssigned $($EmployeeID$,$ ProjectID, Time$\%)$

Which of the following SQL queries will list employees with no project assignment?

a$.$ Select $*$ From Employee Where Time $\%=0$

b$.$ Select $*$ From Employee Where ProjectID is Null

c$.$ Select $*$

From Employee

Where EmployeelD In $($Select EmployeelD From IsAssigned Where Time$\%=$

d$.$ Select EmployeelD, FullName, Salary

From Employee, IsAssigned

Where $($Employee$.$EmployeelD $=$ IsAssigned.EmployeelD$)$ And Time $\%=0$

e$.$ Select $*$

From Employee

Where EmployeelD Not In $($Select EmployeelD From IsAssigned$)$