This is from Math-119 Calculus and the line order from graph is from left to right of (C,B,A). You need to identified which drug requires largest dose for desire response from A, B, and C? Also the smallest dose from A,B,C? And which drug has largest maximum response from A,B, C? And the smallest maximum from A,B,C? Last you need to identify which drug with broader range of safe and reliable dosage are safe to administer, which these drugs is the safest to administer? Same choose from A,B,C.

The graph below shows response curves for three drugs, A, B, and C. The horizontal axis is dosage, and the vertical axis is response. (Note: The horizontal green line on the graph marks the minimum desired response level. The horizontal red line on the graph marks the maximum safe response level.) (a) Which drug requires the largest dose for the desired response