### Question 1 **When questions ask about the calculations of CS, PS, and TS, how should such questions be attempted?** #### Options: 1. Author should provide the formula for CS, PS, and TS numerically before solving them. 2. Author should provide the formula for CS, PS, and TS before solving them using the triangle formula given graph of demand and supply. 3. Author should provide the formula for CS, PS, and TS in words before solving them. 4. All options can be possible. --- #### **Correct Answer:** - **All options can be possible.** #### **Explanation:** - Each of the listed approaches (numerically, graphically, and in words) is a valid way to approach the calculations of Consumer Surplus (CS), Producer Surplus (PS), and Total Surplus (TS) depending on the context of the question or the preference of the author. Therefore, the most inclusive and correct answer is that all options can be possible.