The correct answer is: B. boasting
Boasting is the act of talking about oneself in a way that is too proud or confident. It is often seen as a negative trait, as it can make the person who is boasting seem arrogant or conceited.
Flattering is the act of praising someone in a way that is not genuine. It is often done in order to gain something from the person being flattered, such as their approval or their business.
Ideal talk is the act of talking about things that are perfect or ideal. It is often done in order to make oneself or others feel better, but it can also be unrealistic and unhelpful.
Irrelevant talk is the act of talking about things that are not related to the topic at hand. It can be annoying and disruptive, and it can make it difficult to have a productive conversation.
In the context of the question, “One should not indulge in tall talks,” the correct answer is B. boasting. This is because boasting is the act of talking about oneself in a way that is too proud or confident, which is the opposite of what the question is asking. The other options, flattering, ideal talk, and irrelevant talk, are not as relevant to the question.