What conflict is best revealed in this passage from Helen Keller's The Story of My Life?

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Have you ever been at sea in a dense fog, when it seemed as if a tangible white darkness shut you in, and the great ship, tense and anxious, groped her way toward the shore with plummet and sounding-line, and you waited with beating heart for something to happen? I was like that ship before my education began, only I was without compass or sounding-line, and had no way of knowing how near the harbour was. "Light! give me light!" was the wordless cry of my soul, and the light of love shone on me in that very hour.

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A. Helen's fear that she will never be able to communicate with her teacher
B. Helen's grief that she no longer had the ability to communicate
C. Helen's frustration with the challenges of learning to communicate
D. Helen's anger at not being able to communicate with her teacher