Question

question 4
a system is...
a set of interacting parts forming a complex whole.
a set of interacting parts forming a simple whole
a set of interlocking joings forming a simple whole.

Explanation:

By definition, a system is a collection of interacting or interdependent parts that form a complex whole. The other options do not accurately capture the concept of a system.

Answer:

A. A set of interacting parts forming a complex whole.