As for the Roundoff Error, which one$($s$)$ of the following descriptions are true $?\_\_\_\_\_\_\_.$

A$.$

The condition of an If$...$Then can be used for an equality comparison with floating point numbers

B$.$

A roundoff error occurs when a floating point number cannot be exactly represented in binary notation by the computer

C$.$

To correct the roundoff error, a very small threshold can be assigned

D$.$

The condition of an If$...$Then should never make an equality comparison with floating point numbers because of the possibility of roundoff error

A$.$

If$$condition$$Then$$Statement

B$.$

If$$condition$$Then

C$.$

If$$condition$$Then

Statement

End If

D$.$

If$$condition$$Then

End If