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.

Technical analysis is a form of security analysis that:
Option A:assesses past price action to project future prices.
Option B:requires in-depth knowledge of financial instruments.
Option C:is ineffective when evaluating long-term price movements.

Answer: A