The following sentence is missing a necessary colon or contains an unnecessary one. Select the answer option that will make the sentence correct. If the original
sentence is correct as is, select No change.
When Harry S. Truman ran for president in 1948, several factors supposedly were
working against him, the media, Republican candidate Thomas E. Dewey's
popularity, and Truman's own down-to-earth style.

When Harry S. Truman ran for president in 1948, several factors supposedly were working against him: the media, Republican candidate Thomas E. Dewey's popularity, and Truman's own down-to-earth style.

Explanation:

Colons are used before a list of items, which in this case are the factors working against Harry S. Truman.

why did you delete the answer?

the passage can be best described as: "the british legislature extended an unwarranted jurisdiction".

we can say that because the text clearly states how the people of the colonies warned the british about their excessive desire to rule over them, without taking into consideration the difficulties their brothers had experienced in america: they struggled to establish the colonies, to adapt to new types of weather, fight with the natives, etc., and how they now see (or then saw) the only way out was to cut all ties with the british, since they ignored the people's petitions.