With the introduction of the automatic teller machine $($ATM$),$ some bank tellers initially lost their jobs, but since the ATM made it cheaper to operate a branch bank, many banks $\_\_\_\_\_\_\_\_\_\_\_,$ which led to $\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_.$

Group of answer choices

closed many of their branches; decreased demand for bank tellers

went out of business; decreased demand for bank tellers

opened up more branches; less competition between banks