The primary problem in A is the use of wrong diction ‘soon be’. The correct diction is ‘soon have’. Therefore, A is out.
Coming to would vs will, when you use a speculative or not so certain modal ‘would’ for the causal part, you cannot use a definitive ‘will be impossible’ for the effect part. You must change the effect part to an equally speculative ‘would be impossible’ or ‘might be impossible’.
Coming to would vs will, when you use a speculative or not so certain modal ‘would’ for the causal part, you cannot use a definitive ‘will be impossible’ for the effect part. You must change the effect part to an equally speculative ‘would be impossible’ or ‘might be impossible’.
