The answer for this question is True
<span>the four-firm concentration ratio in the u.s. soda market in 2009 are as follows
Coca cola -42.7%
Pepsi - 30.8%
Dr.pepper snapple group - 15.3 %
Royal crown - 2.1 %
From the above data we can clearly find that Coke has an uphill battle—they have huge amounts of marketing muscle, financial resources.Against Coke and Pepsi, guerrilla warfare is the only thing that might work.</span>
The answer is: A.Position a worker to signal you when operating a vehicle in reverse gear without audible forward alarm
When operating vehicle in reverse gear, the operator cannot always see whether the worker who gives the signal able to see the moving vehicles or not.
Which is why an audible sound for moving vehicles is needed so the other workers could notify the location of your vehicles and avoid themselves from being crushed.
Saudi Arabia has the most