Which driver weakened the Swiss Franc? A. A surprise change in Net Export Expectations B. A surprise change in Inflation Expectations C. A surprise change in Valuation Expectations D. A surprise change in Interest rate Expectations; Question: Which driver weakened the Swiss Franc? A. A surprise change in Net Export Expectations B. A surprise change in Inflation Expectations C. A surprise change in Valuation Expectations D. A surprise change in Interest rate Expectations