Question

consider the commas in bold, which are used to separate the items in a list. if they are not used correctly, remove them or replace them with different punctuation marks. in 1942, gasoline rationing began in the u.s. as an effort to support americas troops during world war ii. ration stamps were issued to show how much gasoline was allotted to each vehicle, the government enforced \victory speed,\ a mandatory wartime speed limit of thirty - five miles per hour, and carpooling became popular.

Explanation:

• The comma after "vehicle" is incorrect. It separates two independent clauses ("Ration stamps were issued..." and "the government enforced...") without a coordinating conjunction. A semicolon should be used instead.
• The comma after "Speed" is incorrect. It is part of a non - restrictive appositive ("a mandatory wartime speed limit...") which should be set off by commas. But since it is part of a title ("Victory Speed"), the comma should be removed.
• The comma after "hour" is incorrect. In a list of three or more items ("ration stamps...", "the government enforced...", "carpooling..."), the comma before "and" (the Oxford comma) is optional. But in this case, since the second item is long, it is better to keep the comma. However, the main issue is the first two commas.

Answer:

In 1942, gasoline rationing began in the U.S. as an effort to support America's troops during World War II. Ration stamps were issued to show how much gasoline was allotted to each vehicle; the government enforced "Victory Speed" (a mandatory wartime speed limit of thirty - five miles per hour), and carpooling became popular.