Forex Multiple Timeframe Trading; Need Advice

Hi everyone. If I have a 1 hour, 15 minute and 1 minute chart giving me buy signals, which chart is best to enter and exit the trade? Thanks.

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Speculators who exchange stocks, futures, or alternatives regularly utilize a broker who goes about as an operator in the transaction. The broker takes the order to an exchange and endeavors to execute it per the customer's guidelines. The broker is paid a commission when the customer buys and sells the tradable instrument for offering this support. The FX market doesn't have commissions. Dissimilar to exchange-based markets, FX is a principals-just market.