Final answer:
Candlesticks are used by professional traders, analysts, and investors to analyze price movements in the financial market.
Step-by-step explanation:
The correct answer is A) Traders, analysts, and investors. Candlesticks are extensively used in technical analysis by traders, analysts, and investors in the financial market. Candlestick charts provide valuable information about the price movement of a financial instrument over a given period of time, which helps these professionals make informed trading decisions.