____________ occurs when we just use something without thinking about the details of how it works.

Answer the following statements true (T) or false (F)

1) A 1NF table with simple primary key is already in 2NF. 2) In Oracle9i, a table name cannot be one character long. 3) The NUMBER data type can be used for integer, fixed-point decimal, and floating-point decimalvalues. 4) Two tables may have constraints with same constraint name under a user’s database.

The prebuilt CSS layout pages contain ____ layouts.

A. fixed-width B. elastic C. fluid D. all of the above