Final answer:
An objective summary is a summary that presents information in a neutral and unbiased way, without expressing any personal opinions or feelings.
Step-by-step explanation:
An objective summary is a summary that presents information in a neutral and unbiased way, without expressing any personal opinions or feelings. Based on this definition, the statement 'People were proud of the achievement of building the bridge' is an objective summary. It does not express any personal opinions or emotions, but simply states a fact about people's feelings towards the Brooklyn Bridge.