In the battle between Coca-Cola and PepsiCo, the main advantage of Coca-Cola has been
a. its innovative products.
b. its brand name.
c. the reduction of market commonality with PepsiCo the tactical actions it has taken in pricing.

b. its brand name

Explanation:

Brand Loyalty is when customers become attached to a particular brand and this results in continuous purchase of a  company`s various product mix and product range.

The Coca Cola brand has been established over the years compared to the PepsiCo and this has been the main advantage of Coca-Cola had over PepsiCo.

B) its brand name.

Explanation:

Coca-Cola is the world wide undisputed king of marketing. It is sold everywhere, and the only two countries where Coke is not sold, Cuba and North Korea, their leaders import it for their personal consumption and limited distribution. E.g. in Cuban hotels tourists can actually purchase Coke even though Coca Cola doesn't operate in Cuba. Mr. Kim Jong-Un has also been recorded drinking Coke and enjoying other luxury items from the "tyrant" western countries.

In the US, Coke's market share is 43.3%, they are very closed to be legally considered a monopoly, the only reason they are not legally a monopoly is because Pepsi has a 29% market share and is considered a serious competitor. Coke is number one non-alcoholic drink in the US with a 17.8% market share, Diet Coke is number two and Pepsi is number three.

Globally Coca Cola has 3 times more market share than PepsiCo, and it is also around 40%.

the correct answer is b.)