Question

correct the text by inserting one comma. (note: in this skill, serial commas are not optional.) while the new regulations were simply meant to prevent the spread of food - borne illness many chefs found them burdensome.

Explanation:

When a subordinate clause (here, "While the new regulations were simply meant to prevent the spread of food - borne illness") begins a sentence, a comma is needed after it to separate it from the main clause ("many chefs found them burdensome").

Answer:

While the new regulations were simply meant to prevent the spread of food - borne illness, many chefs found them burdensome.