For Many Years Rolex Watches and Colt Firearms Spent Very

For many years Rolex watches and Colt firearms spent very little money on advertising yet were successful brands.The success of these products can be interpreted as evidence that:

A) product quality and image are important determinants of success.
B) advertising increases product costs and prices.
C) advertising is a major barrier to entry.
D) advertising is never really needed for a brand to be successful.
E) luck also plays a major role in the success of a product.