K12 (LRN) will emerge as the online school of choice for America’s 57M K-12 students, Andrew Left’s Citron Research argues in a new research report. The firm best known for short-selling says K12 has the “leading back-end solution for the over 130 thousand K-12 schools that are looking to shift from brick and mortar to a hybrid model with a full online component.” Citron added, “What Teladoc (TDOC) did for medicine, LRN will do for education. Much like telemedicine will never completely replace visiting a doctor, online K-12 education will never fully replace the classroom. Instead, going forward a hybrid model of learning will forever be embraced.” Citron believes K12 will trade to $100 in 2020 “once investors understand the new truths.” Shares of K12 are up 7%, or $2.43, to $37.51 in morning trading.