Ravi has been fully cured . . . . . . . . the chronic pain in his legs. A. from B. by C. of D. with

The correct answer is: A. from

The preposition “from” is used to indicate the source or cause of something. In this case, Ravi has been cured from the chronic pain in his legs.

The other options are incorrect because they do not accurately reflect the meaning of the sentence.

• The preposition “by” is used to indicate the agent or means
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