Question: Which of the following was true of double-cross hybrid maize according to Lecture 4?" Need Assignment Help? Options: 1. This process was developed by Land Grant Universities and marketed by the Hi-Bred Corporation 2. Two-step breeding ensured that productivity gains would persist from one year to the next 3. Double-cross hybrids allowed Okie and Arkie farmers to remain on the land during the Depression 4. All of these were true of Double-Cross Hybrid Maize