An algorithm is a . a. simple thinking strategy for making decisions quickly and efficiently. b. testing method involving trial and error. c. automatic, intuitive judgment. d. methodical step-by-step procedure for solving problems.

d. methodical step-by-step procedure for solving problems.

Explanation:

It is a set of instructions or a step-by-step methodological approach or process that helps solve simple or complex problems. Let’s say you want to count the number of people in a hall. You can count them one at a time with your finger and count from 1. You can express this algorithm of counting the number of people in that hall in form of a mathematical or computer pseudo code.

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