In the light of software engineering software consists of :

In software engineering, software is defined as more than just executable code. The standard definition (given by Pressman and echoed across software engineering texts) treats software as a complete product made of three inseparable parts: computer programs (the executable instructions that provide the required features and performance), data structures (the data that lets a program correctly store and manipulate information), and documentation (the descriptive material that explains how the program is built, installed, and used).

The question lists exactly these three elements as separate options: Programs, Data, and Documentation. Each one, taken alone, is only one part of the full definition of software, so no single one of them by itself is what "software" means in the software-engineering sense. Only the option that combines all three captures the complete definition.

Cross-checking against the definition: a program with no data and no documentation is not a complete, usable software product, and data or documentation on their own (without any executable code) are not "software" either. Only the union of all three matches the accepted definition, which confirms that the combined option is correct.