Helen Keller learned to speak but Anne translated her words when she spoke in public. The reason Helen needed a translator was because _________.

The passage states that it was hard for anyone but Anne to understand Helen when she spoke. Choice Helen spoke another language is incorrect because the passage does not mention Helen spoke a foreign language. Choice Helen spoke very quietly is incorrect because there is no mention of how quiet or loud Helen’s voice was. Choice Helen did not speak but only used sign language is incorrect because we know from reading the passage that Helen did learn to speak.