Multi-select problem: How does the next paragraph end?

The welder is held over a steel plate and moved slowly. The man pulls the welder over a copper colored piece of metal. the man

OPTIONS:
(1). puts down his face guard and welds a spot on a piece of metal.
(2). screws on a small flat plate and lower the metal plate to fit in the metal ring.
(3). pointed at the metal piece and started welding the metal one ball at a time.
(4). brushed it over the aluminum.
(1).