What is obstruction in baseball?
a. When a fielder in possession of the ball doesn't get in the way.
b. When a fielder not in possession of the ball doesn't get in the way
c. When a fielder not in possession of the ball gets in the way
d. When a fielder in possession of the ball gets in the way
baseball, obstruction is when a fielder illegally hinders a baserunner running within the basepath. Baserunners are generally permitted to run from base to base without being physically blocked or hindered by a fielder.