Question

find the relative clause. if it is nonrestrictive, set it off with commas. if it is restrictive, submit the text without making any changes.

prior to becoming the thirty - ninth president of the united states, jimmy carter had to assume control of his familys farm which was struggling to stay operational.

Explanation:

The relative clause here is "which was struggling to stay operational". It is nonrestrictive because it provides additional information about the family's farm (not essential for identifying the farm) and should be set off with commas.

Answer:

Prior to becoming the thirty - ninth president of the United States, Jimmy Carter had to assume control of his family's farm, which was struggling to stay operational.