In his persuasive speech about why people should buy used rather than new automobiles, carlos provided the audience with information about his background as a used-car salesperson carlos employed which type of appeal?

Ethos

Explanation:

productive most commonly means: achieving or producing a significant amount or result.

explanation:

productive can also mean:

these depend on how the word productive is used. most likely productive will mean   achieving or producing a significant amount or result.