Final answer:
Option B: Commercial software is also known as Packaged software, and it is developed and sold for profit. Software developers work in the quaternary sector of an economy.
Step-by-step explanation:
Another name for commercial software is B) Packaged software. Commercial software, often known as proprietary software, is software that is developed and sold for profit. This contrasts with software that is freely distributed or only covers the cost of distribution (freeware), or software whose source code is available for modification and distribution (open source software).
A software developer typically works in the quaternary sector of an economy, which is linked with knowledge-based services including information technology, research, and development. The correct answer for in which sector of an economy a software developer would be is d. Quaternary.
Another name for commercial software is Packaged software. Commercial software refers to software that is developed and sold for profit by software companies. It is typically packaged and sold to customers, who then install and use it on their computers or other devices. Examples of commercial software include Microsoft Office, Adobe Photoshop, and antivirus programs like Norton or McAfee.