Question is written as...

Suppose that a truth table in n propostitional variables is specified. Show that a compound proposition with this truth table can be formed by taking the disjunction of conjunctions of the variables or their negations, with one conjunction included for each combination of values for which the compound proposition is true. The resulting compound proposition is said to be the Disjunctive Normal Form.

I don't even know where to begin this one. Help?