Which of these would a structural linguist have a problem with? the rule against ending a sentence with a preposition, the use of nonstandard english, the idea that language is systematic, the definition of a noun as a "person, place, or thing"

The use of nonstandard English.

Explanation:

The scientist who studies language, speech and language is considered a linguist. Linguistic research is done by philosophers and language scientists who are concerned with investigating the ramifications and nuances involved in human language. Since this is an academic work, structural linguists appreciate English in its standard form, because whenever English is out of its standard form it presents incorrect grammatical forms, which makes linguists' research difficult.

c. spelling errors, if not i am so sorry. but i hope it !