The crucial incentive to produce new ideas comes from

Collective bargaining between unions and employers often lead:

A) to wages that are lower than what workers would have received at equilibrium. B) to reduction in the unemployment rate. C) to wages that are higher than what workers would have received at equilibrium. D) to wages equal to what workers would have received at equilibrium.

Firms owning brand names like Coca-Cola that are so well known continue spending hundreds of millions of dollars on advertising

Since this doesn't seem to be an effort to increase consumer awareness what is the possible explanation for this behavior?