Position Vector and Direction

2007 AIPMT-PRE 1 question

1. 1 Motion in a Plane
   A particle starting from the origin (0, 0) moves in a straight line in the (x, y) plane. Its coordinates at a later time are $(\sqrt{3}, 3)$. The path of the particle makes with the x-axis an angle of
   A $45^\circ$ B $60^\circ$ C $0^\circ$ D $30^\circ$
   Check Answer