Question

Read this sentence from the essay:

"Beating himself with the scourge, and carving his own A in his flesh are manifestations of his sense of guilt."

Based on the context, what does the word manifestations mean?
A.Complete sadness or longing for change
B.External symptoms of illness or disease
C.Simple acts of forgiveness or penance
D.Visible expressions of something internal
I think this one is B am I right?