GBPUSD I ask myself if there will be the breaking of the flat H1

Hello everybody!
Today we have an interesting situation. Take a look at the picture
The borders of the flat on H1 are 1.9811-1.9958.
As you can see I've marked the possible variants of movement. There is marked the red wave a(C) M15, this wave is not yet finished. It will be finished if the 1.9883 level will be broken up.
The supports for the movement down(marked with red on the picture) are 1.9811(the border of the flat);1.9774;1.9742;1.9703
And the resistances for the up movement are 1.9944;1.9958(the border of the flat);1.9966;1.9999.

Best Regards!
Tacomy