Question

What is the figurative meaning of the name "Golden Bridge"?
The bridge is painted a golden color.
The bridge is partly made from gold.
The bridge is very large.
The bridge cost too much money to build.

Answer 1

Its true meaning is that it took too much money to build so your answer would be D. 

Answer 2

The figurative meaning of the name "Golden Bridge" is that the bridge cost too much money to build. (Last option provided)

The bridge got its name due to the massive expenditure incurred along with its construction. It was stated that the cost incurred was so high that with the amount of money devoted to spend on the Golden Bridge, it could have been constructed in gold.