What is this

help plz

Technician a says that if a valve is open when a piston rises to the very top of a cylinder, the piston may actually strike the valve head and cause serious engine damage. technician b says if the camshaft is located in the engine block, then the engine is called an overhead valve engine, ohv engine, or an in-block camshaft. who is right? a. b only b. both a and b c. a only d. neither a nor b

The managing director of a company sends a christmas greeting to all his employees through the company email. which type of network does he use? he uses an .

Will this setup result in what kathy wants to print?