Question

Change the underlined part of the sentence, if required:
Originally developed for detecting air pollutants, a technique called proton-induced X-ray emission, which can quickly analyze the chemical elements in almost any substance without destroying it, is finding uses in medicine, archaeology, and criminology

• A. Originally developed for detecting air pollutants, a technique called proton-induced X-ray emission, which can quickly analyze the chemical elements in almost any substance without destroying it
• B. Originally developed for detecting air pollutants, having the ability to analyze the chemical elements in almost any substance without destroying it, a technique called proton-induced X-ray emission
• C. A technique originally developed for detecting air pollutants, called proton-induced X-ray emission, which can quickly analyze the chemical elements in almost any substance without destroying it
• D. A technique originally developed for detecting air pollutants, called proton-induced X-ray emission, which has the ability to analyze the chemical elements in almost any substance quickly and without destroying it
• E. A technique that was originally developed for detecting air pollutants and has the ability to analyze the chemical elements in almost any substance quickly and without destroying the substance, called proton-induced X-ray emission

Answer 1

Answer: (A)

Originally developed for detecting air pollutants, a technique called proton-induced X-ray emission, which can quickly analyze the chemical elements in almost any substance without destroying it

Let’s examine the sentence: “Originally developed for detecting air pollutants, a technique called proton-induced X-ray emission, which can quickly analyze the chemical elements in almost any substance without destroying it, is finding uses in medicine, archaeology, and criminology.” The underlined part is correctly framed as the clauses ‘Originally developed for detecting air pollutants’ and ‘which can quickly analyze the chemical elements in almost any substance without destroying it‘ are describing the technique of ‘proton-induced X-ray emission.’ Accordingly, the two clauses are placed before and after the clause, ‘a technique called proton-induced X-ray emission.’ Hence, Option A is the correct answer as the underlined part does not require any change.