Which of the following can be inferred as to the relationship between Ellison's work and political movements of his time
A． It had a positive effect, establishing an incisive critical black voice in a time dominated by white literature.
B． It contributed only a small positive effect, as it was not widely read by anyone outside the white literary establishment.
C． Invisible Man served only a documentary function, as it chronicled a movement established long before the novel was published.
D． Its ethereal and naive tone tended to underplay the seriousness of the movement.
E． It tended, through verbosity and excess symbolism, to restrict the public's perception of the basic effectiveness of the movement.