JEE Math Practice Question

Let the points on the plane P be equidistant from the points ($$-$$4, 2, 1) and (2, $$-$$2, 3). Then the acute angle between the plane P and the plane 2x + y + 3z = 1 is :

1. A.$${\pi \over 6}$$
2. B.$${\pi \over 4}$$
3. C.$${\pi \over 3}$$
4. D.$${5\pi \over 12}$$