In this excerpt from the poem "Thanatopsis" by William Cullen Bryant, what is the meaning of the word swain?

Thine individual being, shalt thou go
To mix forever with the elements,
To be a brother to the insensible rock
And to the sluggish clod, which the rude swain
Turns with his share, and treads upon. The oak
Shall send his roots abroad, and pierce thy mold.

A. a young vineyard worker
B. a young boy who hunts wild animals
C. a young shepherd or country boy
D. a very unpleasant person