What is the speed of a wave with a frequency of 2 Hz and a wavelength of 87 m? 0.023 m/s
43.5 m/s
89 m/s
174 m/s

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.  

it would be kevlar ^^