The correct answer is A. The poor examinee prayed God to take pity on him.
The word “prayed” means to make a solemn request or petition to a deity. In this case, the poor examinee is asking God to take pity on him. This is evident from the fact that he is addressing God directly and using the word “O”.
The other options are incorrect because they do not accurately reflect the meaning of the sentence. Option B is incorrect because it implies that the poor examinee is commanding God to take pity on him. Option C is incorrect because it implies that the poor examinee is simply stating that God should take pity on him. Option D is incorrect because it implies that the poor examinee is making a request of God, but not necessarily a prayer.