Final answer:
An algorithm is a set of rules used in calculations or problem-solving operations, especially by a computer. It provides step-by-step instructions to achieve a desired outcome (option a).
Step-by-step explanation:
An algorithm is a process or set of rules to be followed in calculations or other problem-solving operations, especially by a computer. The correct answer to the question is option a) Algorithm. An algorithm is essentially a step-by-step procedure or formula for solving a problem. They are used in various fields but are particularly essential in computer science.
For instance, search engines utilize algorithms to determine the order in which websites are displayed in response to a query, while some other platforms use algorithms to decide the content that appears on users' newsfeeds. Other scenarios where algorithms are employed include data analysis, machine learning, route planning in navigation systems, and decision-making processes in various applications.
Hence, the answer is option a.