Grace, Ted, and Keisha are siblings. Each took a turn using the computer today. The matrix equation that represents this situation is shown, where g is the number of minutes Grace was on the computer, t is the number of minutes Ted was on the computer, and k is the number of minutes Keisha was on the computer.



Which statement is true?

A.
Keisha spent the least amount of time on the computer.
B.
Ted spent the least amount of time on the computer.
C.
All three spent the same amount of time on the computer.
D.
Grace spent the least amount of time on the computer.