For the pair under consideration, the situation becomes more or less clear. The correction, which was previously assumed as a simple zigzag, is still receiving confirmation. Meanwhile, wave [b] appears to be a horizontal triangle, which indicates a short development of wave [c].

Anyway, inasmuch as wave [c] has not been formed yet, an impulse decline is expected due to the development of this wave. Opening sell deals looks like the most optimal and correct decision.

Investment idea: sell 1.3820, stop loss 1.3850, take profit 1.3700.