One evening, a teacher uses a computer program to record each student’s test grade. she then uses the program to calculate each student’s test average for the year. the teacher then plans her lessons for the following week. which of the following best explains how the computer algorithm the teacher? a-it gives the teacher step-by-step directions on how to grade tests. b-it makes a simple task more complex for the teacher. c-it reduces the errors the teacher makes in writing tests. d-it saves time for the teacher so that she can do other tasks.