Which field type is required for a snapshot field?

The correct choice is the formula - numeric field type for a snapshot field. A snapshot field captures the value of another field in a more time-stamped manner, allowing users to track changes over time. The formula - numeric field type is specifically designed to compute and output numerical values based on the logic defined in the formula.

This capability is essential for creating meaningful snapshots since they often rely on calculations or aggregations of numerical data to provide insights over time. By utilizing a formula - numeric field, users can ensure that their snapshot data accurately reflects the underlying metrics they wish to monitor, enabling better decision-making and trend analysis.

Other field types like text, date/time, or numeric alone may not provide the necessary context or computational power that a formula - numeric type offers, as they either cannot perform calculations or do not serve the specific purpose of capturing time-related numerical values efficiently.