What is the best revision for this topic sentence?

Limiting or even blocking trade makes it difficult for countries to continue illicit activities.
Economic sanctions make it tricky for countries to build weapons.
Economic sanctions that limit or even block trade make it difficult for countries to continue illicit weapon building.
Answer the following questions:
Which of the following make good topic sentences? Check all that apply.

Athlete Fauja Singh finished his marathon in 8 hours, 25 minutes, and 16 seconds.
Athlete Fauja Singh is an inspiration to older adults around the world.
Athlete Fauja Singh is a brave and determined athlete.
Athlete Fauja Singh ran a marathon when he was one hundred years old.