Edmentum, what is the order?

Me with this i need to get the answer quickly.

Which of the following is a nonspecific defense against pathogens? - b cells - antibodies - t-cells - inflammation

The famous scientist galileo galilei did several experiments with sloping planes, which he rolled metal balls down so that he could study motion. by changing the slope, he could study how the speed at which the ball rolled was affected. what was the dependent variable in galileo's experiment?