Final answer:
A. tons. The Albany Bridge would be measured in tons.
Step-by-step explanation:
The question is about closing the Albany Bridge and the unit of measurement that would be used to quantify the weight of the bridge. The answer is A. tons, as tons is commonly used to measure the weight of large structures like bridges. Pounds, kilograms, and gallons are not typically used to measure the weight of structures. For example, the Golden Gate Bridge in San Francisco weighs approximately 887,000 tons.