Answer:B
Explanation:ndjfjrjdjrjrjrjdj
B and d I know for a fact
This sentence can be classified as a nonrestrictive phrase based on its composition and function in the sentence.
<h3>What is the difference between a clause and a phrase?</h3>
Clauses often include a subject and a verb while phrases do not. Based on this the underlined part is a phrase.
<h3>What is nonrestrictive?</h3>
This word is used when an element in a sentence is not essential to its meaning. This occurs with "formed by..." because this is only an extra detail about the canyon.
Learn more about clauses in: brainly.com/question/2669118
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<u>Answer:</u>
The airline industry has a high demand for pilots; however, the ability to train new ones and recruiting them is very challenging. The experience required determines the capability of wringing. This is because the industry is susceptible and requires more training. Besides training itself is very expensive and may take long time for one to be fully considered a pilot. The process, therefore, may slow down the recruitment process thus making it a challenge to the airline and the entire workers.