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.

Why is technical analysis especially useful in the analysis of commodities and currencies?
Option A:Valuation models cannot be used to determine fundamental intrinsic value for these securities.
Option B:Government regulators are more likely to intervene in these markets.
Option C:These types of securities display clearer trends than equities and bonds do.

Answer: A