Choice practice

## Which of the following strings are matched by the regular expression ```a(l|pp)liance```? - [ ] ```aliance``` - [x] ```appliance``` - [x] ```alliance``` - [ ] ```appiance``` - [ ] ```alppliance``` ## Which strings are matched by ```[aA](\d steak sauce|(b|B) testing)```? - [x] ```A1 steak sauce``` - [x] ```a1 steak sauce``` - [ ] ```alliance``` - [x] ```Ab testing``` - [ ] ```AB tests```