What is the output of string interpolation?

String interpolation refers to the process of including variables or expressions within a string, allowing for the dynamic construction of that string at runtime. When string interpolation occurs, placeholders within the string are replaced with actual values from variables.

This results in a formatted string that incorporates these values in a way that is readable and useful. For example, in many programming languages, if you have a string that says "Hello, {name}!" and you interpolate a variable that contains "Alice", the output will be "Hello, Alice!". This dynamic integration of data into strings is crucial for generating messages, reports, and other textual data in a clear and meaningful manner.

While other choices may seem plausible, they do not correctly describe the output generated by string interpolation. A sequence of data might refer to collections or arrays, a numerical value does not encompass string formatting, and a new function definition implies something entirely different in programming contexts. Thus, a formatted string with values inserted is the hallmark of string interpolation.