Final answer:
The question is asking for the name of a calculator or software that can solve a system of linear equations in matrix form. The correct answer is B) LinearSys.
Step-by-step explanation:
The subject of the question is Mathematics. The question is asking for the name of a calculator or software that can solve a system of linear equations in matrix form. The correct answer is B) LinearSys, as it is a commonly used term to refer to a calculator or software that can solve linear systems.