Identify the correct statements from the following regarding spiral model. A.…

Final answer: The correct statements are that the spiral model is a risk-driven process model and that it involves a set of anchor‑point milestones.

Explanation:

• “Spiral model is a risk‑driven process model” — True. The spiral model structures each cycle around identifying, analyzing, and mitigating risks; risk management is the primary driver of its iterations.

• “Spiral model involves a set of anchor point milestone” — True. The model specifies anchor/commitment milestones (for example life‑cycle objectives, life‑cycle architecture, initial operational capability) used to evaluate progress at key points.

• “Spiral model is an incremental process model” — Not correct as stated. While the spiral can produce evolving prototypes and incremental deliverables, it is fundamentally an iterative, risk‑driven life cycle rather than the canonical incremental model.

• “Spiral model is an acyclic balancing approach” — False. The spiral model is explicitly cyclic/iterative (represented as spirals or cycles); calling it acyclic contradicts its core iterative nature.

Conclusion: The correct pair of true statements are the risk‑driven characteristic and the presence of anchor‑point milestones.