The passage suggests which of the following about service provided by the regional bank prior to its investment in enhancing that service?
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AIt enabled the bank to retain customers at an acceptable rate.
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BIt threatened to weaken the bank's competitive position with respect to other regional banks.
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CIt had already been improved after having caused damage to the bank's reputation in the past.
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DIt was slightly superior to that of the bank's regional competitors.
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EIt needed to be improved to attain parity with the service provided by competing banks.