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 its 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.![]()
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.