Which two lines in this excerpt from the poem "A Grain of Sand" by Frances Ellen Watkins Harper indicates its subject?
A. Do you see this grain of sand
Lying loosely in my hand?
Do you know to me it brought
B. Just a simple loving thought?
When one gazes night by night
C. On the glorious stars of light
D. Oh how little seems the span
Measured round the life of man.
