Answer:
c) maintaining
Step-by-step explanation:
A software development life cycle (SDLC) can be defined as a strategic process or methodology that defines the key steps or stages for creating and implementing high quality software applications. There are seven (7) main stages in the creation of a software and these are;
1. Planning.
2. Analysis.
3. Design.
4. Development (coding).
5. Testing.
6. Implementation and execution.
7. Maintenance.
Hence, when a program is being implemented, the step which comes after executing is maintaining. This is ultimately the last stage of the software development process and it involves regular updates and other management tasks.