Directions: Read the following information carefully and answer the question given below. In an effort to deny criticism that the radiation emitted from a nuclear research plant poses a health hazard to the surrounding city, the research establishment which operates the facility issued a statement stating that “the level of radiation emitted from the facility is usually lower than that emitted during a chest X-Ray exposure.”

Which of the following, if true, would most weaken the facility's argument?

Level of radiation produced by chest X-Ray exposures is higher than that of many other medical tests such MRI, CT Scan and household appliances such as television sets and computer display terminals.

<div align="justify">The amount of radiation that nearby colony residents are exposed to from the research plant is, over time, much greater than the amount of radiation they are exposed to from chest X-Ray exposures.

The nuclear research plant is surrounded by a restricted access area, which is clearly marked and contains posted warnings about the potential radioactive hazard.

Research indicates that the particular type of radiation emitted by the research plant takes longer to reach levels dangerous to human health than the type produced by chest X-Ray exposure.