I believe the answer is B. Biographies and histories. (Otherwise its D)
Answer:
Continuous Integration
Explanation:
In continuous integration process, A program or piece of code is edited, tested and validated by team of software developers or contributors to complete and deploy the single project. This practice will improve the quality and reliability of the code.
Improvement, delivery and deployment are the three different phases, to complete the process of continuous integration.The individuals who contribute in a code or program in terms of improvement, delivery and deployment make a team that leads to continuous integration.
So, Agile team Continuously adapt Continuous Integration to new circumstances and enhance the methods of value delivery.