This document includes questions and answers that pertain to the ARPA-E Funding Opportunity Announcement (FOA) entitled "Micro-Scale Optimized Solar-Cell Arrays with Integrated Concentration (MOSAIC) (SBIR/STTR) DE-FOA-0001256".  The full MOSAIC FOA and additional information can be found on the ARPA-E Funding Opportunity Exchange website (https://ARPA-E-FOA.energy.gov).