Texas A&M University (TAMU) ENGR102 Engineering Lab I - Computation Practice Exam

The concept of 'shallow' copies is best described by the idea that they keep references to the original object. In programming, when a shallow copy is made of an object, the new copy contains references to the same nested objects that the original object points to, rather than creating new instances of those nested objects. This means that changes made to the nested objects through the shallow copy will also affect the original object, as both share access to the same nested objects in memory.

In contrast, 'deep' copies create entirely independent instances of the objects, including all nested structures, ensuring that changes in one do not affect the other. Therefore, the response that indicates shallow copies maintain references to the original object accurately captures the essence of how shallow copying works in contrast to deep copying.