True or False?

1A. A clustering index allows for the ordering of physical records in a table during a table reorganization into the same order as the clustered index keys.

1B. A good time to use de-normalization is when data needs to show values as they were on the day of entry.

1C. Each select clause in a correlated subquery can by executed on it's own.

1D. A One-to-Many relationship is implemented with one reference table whose primary key matches the value of a foreign key in a second table.

1E. A one to one relationship can be implemented using only one table.