What does the phrase “swapping horses in the middle of the stream,” mean, and who said it

"Don't change horses in midstream means don't alter your course of action, plan, or leader in the middle of a project, don't change your mind at an inopportune moment. A related phrase is don't swap horses in midstream. The proverb is credited to Abraham Lincoln, the sixteenth president of the United States" (grammarist)

Explanation:

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Lincoln said it and was referring to his disapproval of changing the presidential administration during the Civil War.

Explanation:

i had this answer on my exam and i got it right!

in november 1781, john hanson became the first president of the united states in congress assembled, under the articles of confederation. many people have argued that john hanson, and not george washington, was the first president of the united states, but this is not quite true.

explanation:

the right answer is d