Which of the following scenarios would most likely result in a decline in
wages?

A. A small town once had five factories employing thousands of
workers, but then four closed in one year.

B. A small town has two restaurants and a handful of cooks and
waiters.

C. A small town has an oil boom, and overnight thousands of new
positions emerge.

D. A small town has many engineering firms and several colleges
with graduating engineers.