Which of the following is used for 3D positioning and modeling, animation, and other application? A. Trackball B. Space ball C. All of the mentioned D. Spac ball

The correct answer is B. Spaceball.

Spaceball is a 3D computer input device that is used for 3D positioning and modeling, animation, and other applications. It allows users to manipulate objects in 3D space with six degrees of freedom, simultaneously pan, zoom, and rotate 3D objects.

Trackball (Option A) is a pointing device consisting of a ball held by a socket containing sensors to detect a rotation of the ball.

Option C cannot be correct because not all the mentioned devices are used for 3D positioning and modeling, animation, and other applications.

Option D seems to be a typo or a non-existent term in this context.

So, the correct answer is B. Spaceball.