After <code>Box a = new Box(); Box b = a;</code>, modifying <code>b</code> (through its methods)
- Acheck_circle
Modifies the same object that a refers to
- B
Has no effect on a
- C
Throws an error
- D
Creates a copy
Explanation
<code>b = a;</code> copies the reference, not the object. Both refer to the same Box.