To measure the wavelength of any longitudnal wave, one should measure distance from
A.)rarefaction to compression
B.)compression to compression
C.)amplitude to amplitude
D.)crest to trough

this allows people to make the best decision or pursue the best option. when alternatives are weighed using their advantages and disadvantages, the option whose disadvantages outweigh the advantages (based on a qualitative or quantitative analysis) are shunned while those whose advantages outweigh their disadvantages are pursued.