Read the excerpt below and answer the question.

for i am at my destination: another garden.
where the unpebbled walk awaits tomorrow's footprints.

in the above excerpt from the poem, the phrase "the unpebbled walk awaits tomorrow's footprints" refers to

a. memories of chang's home in china
b. chang's feeling of loss at leaving his childhood garden
c. chang's feelings about his new life
d. the difficulties chang experienced in america