The correct answer is B. scale3d(x,y,z).
A. circle(x,y,z) defines a 2D circle.
B. scale3d(x,y,z) defines a 3D scale transformation.
C. rotate3d(x,y,z,angle) defines a 3D rotation transformation.
D. rotate(angle) defines a 2D rotation transformation.
A 3D scale transformation is a transformation that changes the size of an object in all three dimensions. The scale factor is a number that specifies how much the object should be scaled. For example, a scale factor of 2 would double the size of the object, while a scale factor of 0.5 would halve the size of the object.
The scale3d() function takes three arguments: the x-axis scale factor, the y-axis scale factor, and the z-axis scale factor. For example, the following code would scale an object by a factor of 2 in the x-axis, a factor of 3 in the y-axis, and a factor of 4 in the z-axis:
object.transform.scale3d(2, 3, 4);