is a marketing research method in which customer comments from a variety of social media sites are analyzed, seeking to gain insights into what customers really think.

Sentiment analysis

Explanation:

Sentiment analysis -

It is research method in the field of marketing , where the evaluation and analysis of the consumers feedback is done , is referred to as sentiment analysis .

The data and information is collected via survey , feedback forms , social media , chats , emails etc . and then all the data is analysed in a very concise manner , and then all the thoughts , likes , dislikes of the consumers are considered before making any product .

Hence , from the given information of the question ,

The correct answer is sentiment analysis .

answer/// the grapefruit that guarantees you will loss five pounds a week;

answertrue;