U.S. business sentiment slumped in April including a slide in export order expectations, indicating the extent of the coronavirus-linked impact of a drop in demand and industrial closures. The export order index of 35.3, where below 50 indicates a contraction, was the worst since at least 2010 after the fourth straight decline. Only apparel and allied products improved, likely including medical personal protection equipment production. The autos sector was one of the worst performers, which isn’t a surprise given the collapse in autos sales and the complexity of automotive supply chains....