Which process allows for repetitive execution of a block of code?

The process that facilitates the repetitive execution of a block of code is known as iteration. Iteration is commonly implemented in programming through loops, such as for-loops, while-loops, or do-while loops, which enable a specific section of code to run multiple times until a certain condition is met. This capability is essential for tasks that require repeated actions, such as processing elements in a list, generating sequences of numbers, or repeating computations.

Recursion, while it also allows for the repetition of code execution, does so by calling the same function within itself rather than through traditional looping structures. Variable declaration refers to defining variables within a program, and function definition is the process of creating reusable code blocks but does not inherently imply repetition without invoking the function multiple times. Thus, iteration is the most appropriate and straightforward choice for repeated execution of code blocks.