The Teapot Dome scandal was a significant political scandal during the early 1920s, primarily occurring between 1921 and 1924. Since it involved Secretary of the Interior Albert Fall leasing Navy petroleum reserves in Teapot Dome, Wyoming, and other locations to private oil companies without competitive bidding, it was highly publicized during President Harding's administration and continued to unfold into Coolidge's presidency.
Thus, the best placement for the Teapot Dome scandal on the timeline would be:
spanning 1921–1924.
However, given the options you presented, the closest fitting response would be spanning 1920–1923.