Given a text T, and several options, according to the question posed in the text T to choose the most appropriate option from the options as the answer, please directly output the most appropriate option, do not need to output the explanation.

As the expansion phase of the business cycle advances from early stage to late stage, businesses most likely experience a decrease in:
Option A:labor costs.
Option B:capital investment.
Option C:availability of qualified workers.

Answer: C