Answer: A. Something difficult to understand or define
Explanation: The general definition of elusiveness is "eluding or failing to allow for or accommodate a clear perception or complete mental grasp". This applies to the paragraph because they are saying the path to success is unclear.
There are seven major levels of classification: Kingdom, Phylum, Class, Order, Family, Genus, and Species. The two main kingdoms we think about are plants and animals.
rundi ko coro ma chekena lado chus tero didi lai chi ka chu