Answer:
The shift key.
Explanation:
In computer graphical tools like those found in the creative cloud like photoshop, adobe xd, illustrator etc, many commands are similar. Graphic tools are used to create graphic objects or image documents.
When resizing an object, pick the select tool, click on the object to highlight, pick a side and drag to resize the object. To resize the object equally, while dragging the side, press and hold the shift key on the keyboard.
