Consider an instance of the relation Foo. Below, we ask you to write three create

Consider an instance of the relation Foo. Below, we ask you to write three create table statements. Each create table statement must define a primary key. Foo (A, B, C, D) A B C D 1 Ann 23 3 2 Bob 23 4 3 Joe 20 3 4 Bob 20 4 (a) Write two different create table statements for which the instance of Foo is legal. Note that taking the first statement and simply reordering columns does not give a different create table statement.