It means development cost COULD BE recouped in later sales ( probably 4 or 5 years sales). whoa, whoa there. you should know better than this. you can't introduce some random hypothetical consideration, which may or may not be true (and has ZERO explicit evidence in the passage), and then try to cr...

can you please explain why option C is wrong here ? option (c) goes the wrong way. if "There are several industries in which the ratio of research and development costs to revenues is higher than it is in the pharmaceutical industry", then that consideration works against the pharmaceutic...