प्र:

Select the most appropriate sentence with respect to grammar and usage.

• 1
  The IHR are a legally binding instrument of international law that aims of international collaboration.
• 2
  If productive capacity grows, an economy can produced progressively more goods, which raises the standard of living.
• 3
  Marine animals can hear across entire ocean basins.
• 4
  Underwater sound waves are far more violent to sound waves in air.
• 5
  None of these