According to me,
Ⓐ The model can also predict local traffic patterns during rush hour as well as quieter hours. - Already mentioned in the passage.
Ⓑ A similar study by a local bank also improve line flow by adding a ‘flex’ employee to supply additional teller capacity at peak times. - We are talking about a teller system here and not improving employee for additional teller
Ⓒ Extreme crowding at bank teller lines remains relatively rare at most local banks. - Correctly strengthen
...
Ⓐ The model can also predict local traffic patterns during rush hour as well as quieter hours. - Already mentioned in the passage.
Ⓑ A similar study by a local bank also improve line flow by adding a ‘flex’ employee to supply additional teller capacity at peak times. - We are talking about a teller system here and not improving employee for additional teller
Ⓒ Extreme crowding at bank teller lines remains relatively rare at most local banks. - Correctly strengthen
...
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