Question

something that the video forgot to mention is that in a compound sentence, you need to put a comma at the end of the first clause. for example, “she played a new game, and she enjoyed it.” which of the following sentences is a compound sentence?
select one of four
“nasa had recently started to use the ibm machines for the complex trajectory calculations, but glenn famously didn’t trust the computer.”
“jackson had to petition the city of hampton to allow her to take courses at the segregated hampton high school.”
“he said he would be ready to go only if johnson said the numbers were right.”
“the west human computers played a vital role in some of nasa’s greatest accomplishments.”
remaining attempts: 1
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Explanation:

A compound sentence has at least two independent clauses joined by a conjunction (like "and", "but", "or"). Let's analyze each option:

• First option: "NASA had recently started... calculations" (independent clause) and "Glenn famously didn’t trust the computer" (independent clause) joined by "but" → compound sentence.
• Second option: Only one independent clause (Jackson petitioned...).
• Third option: One independent clause ("He said...") with a dependent clause ("only if Johnson...").
• Fourth option: One independent clause (West Human Computers played...).

Answer:

A. "NASA had recently started to use the IBM machines for the complex trajectory calculations, but Glenn famously didn't trust the computer."