Answer:
The first was the terrorist attack known as 9/11. The second was the plane that was hijacked and flown into the twin towers.
Explanation:
An adjective clause is a type of clause that also contains a subject and a verb, but functions to describe a noun. This clause is often introduced by pronouns such as whom, who, that, which and the adverb where, when and why. In the given sentence above, the adjective clause is, "who received a good grade". This clause describes the noun "student".
The best answer from the given choices is letter A, Going
nowhere.
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