Fill in the blanks in the passage with the most appropriate set of words from the options for each blank.
Physicians may soon have _____ to help paralyzed people move their limbs by bypassing the ____ nerves that once controlled their muscles.
Explanation:
If the physicians want to help, they will not have impediments (hurdles, difficulties) to help! Therefore, we can rule out option 4. The nerves that once controlled the muscles cannot be detrimental (causing damage or harm, injurious). Even if they were, then instead of being bypassed, they might as well be removed. Option 1 can therefore be ruled out as well. Between options 2 and 3, option 2 is better. This is because; the nerves once (upon a time) functioned. Since they no longer function or are damaged, they need to be bypassed.
Hence, the correct answer is option 2.
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