The buy option recommendation is based on a combination of key technical factors:
Trend Analysis: The daily and 4-hour charts indicate a strong bullish trend, with GBP/USD breaking resistance levels and maintaining upward momentum.
Support Levels: Support at 1.3390-1.3400 is a key zone identified on the 1-hour and 15-minute charts, offering a good entry point for a buy position.
Moving Averages: The price is above key moving averages (20, 50, and 100-period EMAs), further confirming the bullish bias.
Oscillators: The Relative Strength Index (RSI) and MACD indicate continued buying momentum.