Devolved power in Scotland is characterized by which of the following?

The correct answer focuses on the specific powers that have been devolved to the Scottish Parliament. Devolved powers refer to those responsibilities transferred from the UK Parliament to the Scottish Parliament, allowing for local governance and decision-making on certain issues.

Powers over taxation and public health are indeed part of the devolved powers in Scotland. The Scottish Parliament has the authority to modify tax rates and manage health care services, allowing it to address the unique needs and priorities of the population in Scotland. This includes decisions on income tax, council tax, and issues such as the funding and delivery of health services.

In contrast, powers concerning international treaties, national immigration, and defense strategies remain reserved to the UK Parliament. These areas are not part of the Scottish Parliament's jurisdiction and are managed at the national level, reflecting the broader context of the United Kingdom’s governance structure. Thus, the choice highlighting taxation and public health accurately describes the scope of devolved powers that characterize the Scottish Parliament's functions.