ummm, i'm surprised no one has mentioned this one:

"the process, in face of increasing urbanization and population density, must be accelerated so that the country would meet the diversified food demands rather than slowed down"

isn't the correct form, "must be accelerated so that the country will" or "can"

would should only be used when the sentence speaks in the hypothetical, no? "were the process accelerated, then the country would"... here, the "process must be accelerated so the country would meet the demands..."

pretty sure that would be a 100% wrong answer on the GMAT. any insights on this please???

my thoughts exactly... this was either a type-o or a flat-out mistake by the author because this would not be a correct answer choice on the gmat. it is so egregiously wrong that even if you did come across it on the test, you wouldn't need to worry because its certain that it would be omitted from your score once the question came up for formal review (and was promptly discarded)

How is the second part of answer choice D correct? " the process ... must be accelerated so that the country would meet the diversified food demands rather than slowed down. "Would" doesn't make sense if you are saying the process "must be accelerated so that..."