Which measures can be taken to control noise pollution?
$I-$ Use of sound-absorbent materials or mufflers in industries.
$II-$ Creating horn-free zones around hospitals and schools.
$III-$ Setting permissible sound levels for firecrackers and loud speakers.
$IV-$ Restricting the use of loudspeakers after a certain time.

• A
  $I, II, III, IV$
• B
  $I, II, IV$
• C
  $II, III, IV$
• D
  $I, II, III$