Which of the following is the best hypothesis for this experiment? (Remember that the variable we are going to manipulate is the IF part of a hypothesis and the variable we hope will respond and we will measure is the THEN part of a hypothesis.) Question 1 options: a. If I increase the pressure outside of an air filled balloon, then the balloon will become smaller b. If I increase the temperature of the air in a balloon, then the balloon will become larger. c. If I increase the size inside of a balloon, then the air in the balloon will become hotter.