Number 1. which words fit best?

a. no change)

b. good enough to be considered by some experts to be

c. referred to by some who should know as

d. considered

D

Explanation:

To place into the category or to categorize something as a certain thing or as pertaining to a certain group is to consider. Saying that the literary work belongs to the select collection of works sufficiently well-known and appreciated to be classics is to state that the work is considered a classic.

The other options are not appropriate sin B says only some experts consider it to be a classic and C refers only to people who are aware of the work.  

the answer is not

answer by yourhope:

hi! : )

which answer best describes the interaction between the elements mentioned in the excerpt?

b. an individual influencing an idea!

: )