Question

The writer wants to complete the sentence [2] with a third example of the work of boilermakers in industrialized countries. Which choice best accomplishes this goal?

• A. NO CHANGE
• B. Groups of boilermakers gather at refineries and other field sites
• C. Wrenches, pliers, bull pins, and chisels are used to treat boiler metal
• D. Water treatment facilities retain and prepare water for community use.

Answer 1

The correct option is D Water treatment facilities retain and prepare water for community use.

Option A is incorrect as 'no change' cannot be an option when the question asks to add a sentence.
Option B is incorrect as it is not an example of work done by boiler makers.
Option C is incorrect because it mentions tools used to make boilers.
Option D is correct as it mentions the work that is done by boiler makers.