Final answer:
Sequential coding allows a program to execute instructions in a linear order, making it easier to follow and understand the code.
Step-by-step explanation:
The most important advantage of sequential coding is that it allows a program to execute instructions in a linear order, one after another. This ensures that the program flows logically and makes it easier to follow and understand the code. Sequential coding is particularly useful for tasks that require step-by-step processing, such as sorting algorithms or iterative calculations.