Pick up the correct statement from the following: Method of sawing timber

- 1
  
  tangentially to annual rings, is known as tangential method
- 2
  
  in four quarters such that each board cuts annual rings an angles not less than 45 degree, is known as quarter sawing method
- 3
  
  cut out of quarter logs, parallel to the medullary rays and perpendicular to annual rings, is known as radial sawing
- 4
  
  all the above

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