@jakmom3 A few business courses are 100% online (the lectures), but the professors do have office hours. In most other cases (for entry level classes, which can have 100+ students), you have a choice of attending the class live (in-class section) or reviewing it online (online section). For scheduling reasons (and because some students don’t want to get out of bed before 11 am), they pick the online section.
Once you get past the “gateway” classes and start taking upper division classes, they become more more rare.