Final answer:
In sports, placing yourself between a teammate and a defensive player to block the opponent is called screening, which is a tactical move used, for example, in basketball.
Step-by-step explanation:
Putting yourself in the path of a defensive player in sports is commonly referred to as screening. This is a tactic used in basketball and other sports to block or shield an opponent from reaching a teammate, typically to free up that teammate for a shot or to receive a pass. The correct answer is a) Screening.