money9111 wrote:IMO D... gmatwriter what was your answer?

I had it down to C and D... I chose D because presupposed means assumed... so in the example given above... it's assumed that after the formula has been microwaved, that parents cannot shake it every time...

it doesn't mention anything of Different microwaves or models... C basically reaffirms the last sentence "Because microwave heat fluids unevenly, and a hot pocket in the formula could seriously injure the baby. "

gmatwriter wrote:Please Explain:

There are few things worse for a new parent than listening to a baby scream in hunger while a bottle of formula slowly warms up in a bowl of hot water. So why not just pop the bottle in the microwave and zap it in 20 seconds? Because microwave heat fluids unevenly, and a hot pocket in the formula could seriously injure the baby.

Which of the following is presupposed in the argument against heating formula in the microwave?

Lets Personalize this : I heat a bowl of Formula for my baby in microwave. The microwave heats Formula unevenly. What do i do?... STIR IT & THEN FEED IT !! ....... simple !! ...... lets see which answer choice is closest to this.

a. Babies generally refuse to eat formula that has been heated in a microwave.
Incorrect : This cannot be assumed from the passage above.

b. Microwave radiation might break down some of the proteins in formula that are vital to a baby's health.
Incorrect : Microwave Radiation..... Out of scope.

c. Different microwaves use different amounts of power and consequently some models could heat a bottle to scalding temperature faster than others.
Incorrect : Microwave Models is irrelevant here.

d. Parents cannot be expected to consistently even out the temperature of a microwaved bottle by shaking it vigorously before giving it to the baby.
Correct : This is exactly what we are looking for. It is assumed in the above passage that parents cannot be expected to even out tempt. by shaking it / stirring it before giving it to the baby.

e. Once formula has been heated, any leftover formula should be discarded, because otherwise the formula could spoil between feedings and make the baby sick.
Incorrect : Between feedings is irrelevant here.

d