Correct Answer: Trumpet

Solution : The correct option will be the first option.

The phrase the sound of elephants suggests a characteristic sound associated with elephants, which is commonly described as a trumpet sound.

The meanings of the other options are as follows:

• Quack is the sound a duck makes.
• A laurel is a type of evergreen shrub, tree, or wreath made from its leaves.
• Screech means a harsh, loud, and sharp sound.

Therefore, the correct answer is trumpet.