Toss Up - Physics - Multiple Choice

Martin is swinging a yo-yo in a large room with a circular motion perpendicular to a level floor. If the yo-yo breaks away from its string at the top of the yo-yo's circular path, in what direction will the yo-yo initially move:
W) at an angle between horizontal and vertical
X) straight up, toward the ceiling
Y) straight down, to the floor
Z) horizontally, tangent to its original circular path