Read the paragraph from The Evolution of Useful Things.

In 1916 the company's sales manager insisted that a laboratory be formed to carry out experiments and tests to ensure quality control so that salesmen would not be embarrassed by faulty products. The laboratory in time made possible the research and development necessary to produce new and improved items in response to problems experienced by sandpaper users.

Which words from the excerpt indicate an order of the events in this paragraph?

In 1916, to carry out
to carry out, ensure
so that, in time
In 1916, in time