which sentence needs a comma after the introductory phrase? the cozy bookstore is nestled in the heart of…

Brief Explanations:

The rule is that an introductory phrase (like Despite its reputation for being expensive) should be followed by a comma. The first and third sentences don't have introductory phrases. The second sentence has an introductory phrase Despite its reputation for being expensive which needs a comma after it.

Answer:

The sentence Despite its reputation for being expensive Paris offers plenty of affordable dining options needs a comma after the introductory phrase. The corrected sentence is Despite its reputation for being expensive, Paris offers plenty of affordable dining options.