For each of the following scenarios, identify whether or not it involves strategic interactions. 

a. It is dinner time and you are sitting at the dinner table with your five-year-old daughter. She is refusing to eat her vegetables and you explain to her that failure to eat her vegetables will result in no dessert. 

b. You have been elected to the U.S. Senate from the state of Tennessee. One of your colleagues has proposed a bill that will increase the tax on cigarettes to help pay for health care for lower-income families. You are in favor of the bill, but are concerned that a negative response by tobacco farmers in your state will hurt your reelection chances.

c. You buy a monthly subscription to Spotify. 

d. Economics is your favorite course and you are trying to determine how early you need to arrive for class in order to secure a front row seat.