To be effective, key choices must me
a parallel
b broad
c specific
d diverse

The correct answer is A) parallel.

To be effective, key choices must be parallel.

A key is a device that allows biologist to identify an organism. These keys have contrasting statements required to make comparisons. We are referring to taxonomic keys that identify species or animals. When scientists try to identify an unknown organism they use taxonomic keys to do their research.

it will increase due to the time span

answer; i believe that the correct answer to this statement is (exoticism); //

exoticism was a trend where musicians created music based on a far off foreign