Question

which of the following hot keys can be used to duplicate a cube?
ctrl+d
ctrl+a
rmb+hold drag
scroll mmb

Explanation:

• Scroll MMB: This is typically used for scrolling in applications, not for duplicating objects.
• RMB + hold drag: Right - click and hold - drag is often used for actions like moving an object with a preview (in some 3D software, for example), but not specifically for duplication.
• Ctrl + A: This is a common shortcut for "Select All" in many applications, not for duplication.
• Ctrl + D: In many 3D modeling and graphic design software (such as Blender, 3ds Max, etc.), pressing Ctrl+D is a quick way to duplicate an object.

Answer:

Ctrl + D