A virus or malware appearing/pretending to be a legitimate program is called a Trojan.
Computer-aided engineering (CAE) and finite element analysis (FEA) Computer-aided manufacturing (CAM) including instructions to computer numerical control (CNC) machines. Photorealistic rendering and motion simulation. Document management and revision control using product data management (PDM).
The correct option is A.
When using crane at a construction site, it is required that:
1.A poster should be posted at the job site with an illustration of the hand signals that every operator and personnel working with the crane and around the crane must know.
2. Hand signals for crane and derrick operators should be those set by the American National Standard institute customize for the type of crane in use.<span />
Have you tried turning it off and back on.Try that if that does not work then try debugging it