With reference to the interior of the earth consider the following statements.

1] The earth’s radius is 6,370 km.
2] The deepest drill at Kola, in Arctic Ocean, has so far reached a depth of 12 km.
3] Rocks along a fault tend to move in the same direction.

Which of the statements given above is / are correct?

A

1 and 2 only

B

1 only

C

2 and 3 only

D

1, 2 and 3