Challenging is the best word to replace the word troublesome without changing the overall meaning of the passage.
The answer is option A.
What is the passage within the literature?
Technically, a passage is honestly a component or section of written paintings, either fiction or non-fiction. Some hold that a passage can be as short as a sentence, however, a maximum encompasses a minimum of one paragraph and typically several.
What's a passage instance?
An example of passage is when you move on a ride and someone tells you to be safe in your travels. An instance of passage is when a vehicle moves thru a constrained area with permission. An example of passage is whilst time moves ahead.
Learn more about the passage here: brainly.com/question/26492392
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