Pharmaceutical company claimed that experiments showed that its drug could effectively reduce the growth of cancer cells by 35 percent. however, when five independent laboratories conducted the same experiment, they measured a reduction rate of only 5–8 percent. how did these laboratories show that the pharmaceutical company’s claims were invalid?
a. the labs used the pharmaceutical company’s inadequate data.
b. the labs produced false data.
c. the labs recorded data incorrectly.
d. the labs were unable to reproduce the pharmaceutical company’s data.

Answer : Option D) the labs were unable to reproduce the pharmaceutical company’s data.

Explanation : When 5 independent laboratories conducted the same experiment the expected reduction rate was not observed as per the pharmaceutical company, this shows that the pharmaceutical company claim was false as their drug was not able to reduce the growth of cancer cells as per their claimed percentage reduction rate as 35%.

If the experiments are carried out anywhere in another laboratories, their claimed reduction rate for that specific drug should have reproducible results.

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