Select the correct answer.

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

"Yet not to thine eternal resting-place
Shalt thou retire alone, nor couldst thou wish
Couch more magnificent. Thou shalt lie down
With patriarchs of the infant world -- with kings,
The powerful of the earth -- the wise, the good,
Fair forms, and hoary seers of ages past,
All in one mighty sepulchre. The hills"

A. developing
B. past
C. emerging
D. budding
E. new