Context Clues

Construction on Florence's grand cathedral began in 1296. Over a hundred years later, however, the structure remained unfinished, with an enormous hole in the roof. The designers had intended to top the cathedral with the world's largest dome, but this plan was stymied by architectural limitations. The main factor stalling progress was the fact that no one  knew how to create such a massive cupola without large, cumbersome support systems.

What is the meaning of cupola as a used in the passage?

1.dome is not the meaning to cupola because that's not what the passage is talking about.

2. roof is the correct meaning for cupola because it states that an structure was remained unfinished, with an enormous hole in the roof.

3. decoration is not the meaning of cupola because the passage is not talking about decorating  a cupola.
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4. cathedral is not the meaning of cupola because it does not states that the people is building a cathedral.

2,. read the passage then answer the question.

while the political feats of her husband, president Chiang kai-Shek, may be more widely recognized soong mei-ling's accomplishment are just as notable. As first lady, soong mei-ling introduced her husband to western