The correct answer is A. The turnaround time is the elapsed time between the receipt of the input and the availability of the output. It is a measure of the efficiency of a computer system.
Option B is incorrect. A group of related fields is called a database.
Option C is incorrect. The key information of programming is the algorithm.
Option D is incorrect. A program statement that violates one or more rules of the language in which it is written is called a syntax error.
Option E is incorrect. The turnaround time is a measure of the efficiency of a computer system, and it is not none of the above.