Question:
Goal: how to ripen a mango

Which of the following methods is more reasonable for accomplishing this goal?
Answer:
Submerge the mango in a bowl of uncooked rice or popcorn kernels. they should be ripe within a day or two, maybe even less.

Question:
Goal: how to get cheap textbooks

Which of the following methods is more reasonable for accomplishing this goal?
Answer:
go to amazon.com and search for your textbook, and check other sites for competing prices, such as ebay.

Question:
Goal: To make the melted cheese on a pizza crispier,

Which of the following methods is more reasonable for accomplishing this goal?
Answer:
put the prepared pizza on top rack under a broiler.