Answer:
France allied with the US in the Revolutionary War
Explanation:
D. To be competitive, companies must continue to be innovative.
I believe the answer you’re looking for are (Slavs)-who are an ethnic group that is dispersed across Europe with large concentrations in eastern countries like Bulgaria and Russia.
The Tang Dynasty of China when faced with rebellion from General An Lushan in their northern territories sought outside support from mercenary forces. This was done a number of times during the rebellion, these mercenaries were typically Arab, however, we also have examples of soldiers brought from Uighur to fight with the Tang and numbered in the thousands in the fight against Lushan's forces.
With the help of mercenary forces, the Tang were able to take back several important capital cities of China and effectively eliminated the rebellion of Lushan, as well as his later supporters and successors.