What do brands gain when they position their products well?

In what way did MPR enhance Wal-Mart's sales promotion of prescription medications?

A) Using MPR allowed Wal-Mart to halt all of its television advertising. B) Wal-Mart averted a public image crisis over high pharmaceutical prices. C) Doctors could once again prescribe generic drugs instead of brand-names. D) MPR and sales promotion together proved more valuable than sales promotion alone. E) Wal-Mart became the number one online dispenser of prescription medications.

The real rate of return can never be a negative number

Indicate whether this statement is true or false.