saurabh35 wrote:
Bed linen manufacturers recently released a claim that bed-linen can become contaminated with harmful micro-organisms whenever a sick person sleeps on the linen. For that reason, people should replace their bed linen immediately after it’s been used by an unwell person. Which of the following, if true, would most weaken the statement above?
a) The manufacturers could not discover how long the contamination lasted.
b) The manufacturers failed to investigate contamination of bed linen by other outside sources.
c) The manufacturers found that among people who used contaminated bed linen, the incidence of diseases was higher than among people who used uncontaminated bed linen.
d) The manufacturers found that people who had no history of disease were as likely to have contaminated bed linen as were people who had chronic health problems.
e) Manufacturers discovered that washing the contaminated sheets in hot water rids them of all harmful micro-organisms.
E.
CONCLUSION:people
should replace their bed linen immediately after it’s been used by an unwell person
We have to weken this that we dont need to replace this.
clearly option E does this job.
if you clean with hot water ...harmful microorganisms are finished and hence we can use the same without replacing.
a) The manufacturers could not discover how long the contamination lasted.
WRONG.out of scope.
b) The manufacturers failed to investigate contamination of bed linen by other outside sources.
WRONG.out of scope
c) The manufacturers found that among people who used contaminated bed linen, the incidence of diseases was higher than among people who used uncontaminated bed linen.
WRONG. this one
strengthens .d) The manufacturers found that people who had no history of disease were as likely to have contaminated bed linen as were people who had chronic health problems.
WRONG.still the argument holds because we are not sure that bed linen of healthy people are contaminated with what?...we are worried about the contamination about harmful disease.. ...contamination can be of less harmful disease too..==>doesnt weakens
e) Manufacturers discovered that washing the contaminated sheets in hot water rids them of all harmful micro-organismsWEAKENSHence E