Answer:
By connecting the efforts of pumpkin growers to the size of giant pumpkins.
Explanation:
To complete this exercise, you have to read the article The Great Pumpkin written by Brendan Borrell and then answer the question.
These lines reflect the central idea of the article by explaining how pumpkin growers work to get giant pumpkins: "(...) giant pumpkins have tripled in size, thanks to strategic breeding and hardcore growers with time on their hands and dirt under their fingernails."