Why did Pope Leo X issue the Edict of Worms? to end corruption by certain officials
to officially argue against Luther’s 95 Theses
to accept some of Martin Luther’s 95 reforms and ideas
to excommunicate Martin Luther and label him a heretic

Correct answer is to excommunicate Martin Luther and label him a heretic.

Explanation:

After Luther nailed 95 Theses to the door of church in Wittenberg, he started a movement that would totally change the role of church.

Luther was called to change his attitude, but he refused. Therefore he was excommuned and at the Diet of Worms an Edict was issued proclaiming Luther heretic.

Luther didn't bother much and he continued his fight for reforms.