(Find Error in sentence part)
A. the driver tried his best/B to avert the accident by/ C. bringing the car/D. to a suddenly stop.

Question

(Find Error in sentence part) 
A. the driver tried his best/B to avert the accident by/ C. bringing the car/D. to a suddenly stop.

Accepted Answer

The correct option is 4:
In part D, the error lies in the use of the word "suddenly." "Suddenly" is an adverb, but here it is modifying the noun "stop." For correct grammatical structure, an adjective should be used to describe a noun. Therefore, "sudden" should be used instead of "suddenly" to describe the stop. The phrase should be "to a sudden stop." This construction is a common idiom in English, meaning to stop abruptly.

The incorrect option is A:
"The driver tried his best" is grammatically correct. "Tried his best" is a common idiom meaning to make the greatest effort possible. There are no grammatical errors in this part of the sentence.

The incorrect option is B:
"To avert the accident by" is grammatically correct. "Avert" means to prevent or ward off, and "by" is correctly used to introduce the means by which the accident was averted.

The incorrect option is C:
"Bringing the car" is grammatically correct. "Bringing" is used as a present participle, forming part of a gerund phrase "bringing the car to a sudden stop," which functions as the object of the preposition "by."