Which revision is best for this sentence: "Every technician must utilise his computer to ascertain whether the software program is bad."Question $7$ options:Every technician must use his$/$her computer to see if it is bad.Technicians must use their computers to verify whether the software has malware.Every technician must utilise their computer to verify whether the software program is bad.Every technician must use his computer to verify whether the software program is working.