In which activities should the analyst participate?

The selection related to creating the quality risk analysis and reviewing test plans is appropriate because both activities are crucial parts of the analyst's role in the software development and testing process.

Creating a quality risk analysis involves identifying potential risks in a project and assessing their impact on the product's quality. This activity allows the analyst to prioritize areas that require more attention and resources during testing, ensuring that the most critical aspects are addressed.

Reviewing test plans is another key responsibility for analysts. Through this activity, analysts can ensure that the test plans align with the requirements and cover all necessary scenarios, thus facilitating effective verification and validation of the software.

The combination of these two activities captures the essence of an analyst's involvement—contributing to risk management and ensuring the adequacy of testing efforts. It reflects a focus on the quality assurance process without delving into hands-on testing activities, which are typically the responsibilities of testers.