Answer :
Final answer:
Option OD provides the clearest and most concise way to convey the information in the sentence. It maintains clarity and conciseness.
Explanation:
The clearest and most concise way to convey all of the information in the sentence is option OD: 'These became Catherine's patients, and she strove untiringly to do everything humanly possible to lessen their sufferings and relieve their pain.'
Example: 'Catherine took on these patients and tirelessly worked to alleviate their suffering and pain.'
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