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

Question: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 at angles not less than 45°; 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.

Answer:4