At its core,sentiment analysis is which of the following?

A) Ethnographic.
B) Experimental.
C) Netnography.
D) Focus group.
E) Attitudinal.

Sentiment analysis is focused on analyzing the attitude or opinion expressed in a piece of text, making it attitudinal in nature. It involves categorizing the text as positive, negative, or neutral, and deriving insights from the analysis of these categories. Ethnographic research involves observing and understanding cultural practices and behavior, experimental research involves creating and testing hypotheses, netnography involves studying social media communities, and focus group research involve gathering qualitative data through group discussions.