According to anthropologists

Question 2:
According to anthropologists, the use of human language covers a wide spectrum from practical communication between people engaged in the same task to establishing hierarchy within a social group.

a)practical communication between people engaged in the same task to establishing hierarchy

b)communicating practically between people engaging in the same task to the establishment of hierarchy

c)practical communication between people engaged in the same task to the establishing of hierarchy

d)communicating practically between people engaging in the same task to hierarchy established

e)practical communication between people engaged in the same task to the establishment of hierarchy